One-Handed Simplified Signs 1 Memory and Recall of One-Handed Signs: The Development of a Simplified Sign System for Aphasic Patients with Hemiplegia Alexandria K. Moore Distinguished Majors Thesis University of Virginia April 25, 2011 Advisor: John D. Bonvillian Second Reader: Filip Loncke One-Handed Simplified Signs 2 Abstract A one-handed simplified sign system is proposed to augment the communication skills of persons who have become aphasic and who also experience partial motor movement loss. Based on a previously developed two-handed system, manual signs were modified or created. The memorability of those signs was established through systematic testing of undergraduate students. These signs were presented together with their English translations in sets of six lists of twenty word-sign pairs. Following the presentation of each list, participants were asked to recall each sign after they were cued for recall with each sign’s English translation equivalent. Sign recall accuracy was evaluated based on the four components of each sign: movement, location, handshape and orientation. All signs recalled perfectly by at least 70% of the participants were added to the simplified sign lexicon. Signs that did not meet this criterion were redesigned. One-Handed Simplified Signs 3 Acknowledgment I would like to extend a heartfelt thanks to Professor John Bonvillian for the generous amount of time he put into advising on this project. Without his continued support and enthusiasm completing this DMP would not have been possible. I would like to thank my second reader, Filip Loncke, and the DMP seminar leader, Gerald Clore, for taking time to assist me with this project. Additionally, I would like to thank my four fantastic undergraduate research assistants, Brigette Suijk, Katherine Becker, Kelly Flynn, and Kira Bolton for all of their time, ideas, patience and hard work. Thanks also are extended to Henry Matthews for his work on redesigning signs that have not met criteria. I would like to thank all of my friends and family who have always been so supportive, and specifically for allowing me to put their charades’ skills to the test. One-Handed Simplified Signs 4 Roughly one hundred thousand new patients are diagnosed with aphasias annually, part of the one million who already suffer from this language disorder.i Several different types of aphasia exist, each having specific identifying characteristics in conjunction with a wide array of individual differences, but all reflect a disorder that impairs traditional spoken (or written) language despite other intact intellectual capabilities. This language deficit, typically caused by damage to the left hemisphere resulting from trauma such as stroke, tumor or other injury, does provide a unique opportunity for researchers to study how specific brain areas relate to language use. One aspect of aphasia research that has greatly impacted the psycholinguistic field involves studying Deaf patients who used a signed language as their primary means of communication prior to suffering trauma. After research in the last fifty years provided strong linguistic evidence that American Sign Language included all the components of a grammatically and syntactically rich language, researchers questioned if the different modality required different underlying brain areas to function. Studies that compare Deaf signers who develop aphasia to hearing aphasic patients with aphasia allow researchers to examine how similar deficits affect language output despite the difference between a verbal and signed mode of communication. The results surprised many, revealing that Deaf people show similar errors and deficits as their hearing counterparts, providing evidence to support at least partially overlapping mechanical structure for language output across modalities. While many similar deficits have been found, one interesting distinction existed in terms of less common right hemisphere deficits. This side of the brain has fewer associations with language in hearing patients, but contributes more to One-Handed Simplified Signs 5 language production in Deaf patients, because the grammar of sign language depends on spatial abilities. This difference may be the key to developing a treatment method that, while not able to cure the aphasia, could provide the patient with a basic supplemental or alternative form of communication. Several studies have tested the effectiveness of using signs to help aphasiac patients regain some form of effective communication. While the results of these studies have been promising, many researchers concur that a feasible system, involving iconic, easy to produce gestures should be designed and tested. Thus this research proves important not only for studying how areas of the brain support language but providing at least some members of a large group of affected aphasic patients an opportunity to regain a critically important human skill, the ability to communicate effectively with others. In this paper I will begin by providing background information about aphasia that will provide details about the affected population and the constraints persons with aphasia face when considering treatment options. Subsequently, I will highlight some major research studies using aphasic patients with language deficits. Studies of aphasia such as these investigations suggest possible approaches to treatment. One potential treatment method that seems feasible based on these studies involves utilizing gestural communication to help facilitate or supplement spoken language skills; there has been some prior research examining the effectiveness of this course of action. However, as will become apparent from reviews of other studies, no gestural based system currently available adequately meets the needs of the aphasic population because the systems were not designed or tailored to the needs of this group. The present study aims to take the first One-Handed Simplified Signs 6 steps in creating such a communication system, one that features one-handed signs with the most basic handshapes and movements representing a core vocabulary of words. Understanding A pha sia According to the National Aphasia Association, between twenty-five and forty percent of stroke survivors will develop an aphasia. ii This high percentage rate, coupled with the increased survivability because of improved medical care, explains why strokes are the leading cause of aphasia. This also reveals why elderly patients form the majority of aphasics, because nearly three quarters of stroke victims are over sixty-five years old. iii Brain tumors provide another internal source of aphasias, if the tumors are located in and damaged the left hemisphere. External trauma may also cause this language defect. Car accidents or even falling affect people of all ages and can also lead to aphasia. Another example of a specific population potentially affected with this condition includes members of the military who suffer injuries caused by explosions, shrapnel and similar hazards that they might encounter in a war zone. With the United States actively engaged in conflicts overseas, the number of people at risk for this language disorder rises. Psychologists, linguists, speech therapists and other specialists aim to help all of these different groups regain their communicative abilities regardless of the source of the damage. Initially, some of these researchers used imaging studies to enrich the scientific community’s understanding of the underlying brain structures that support language with great success and exciting results. In recent years the primary focus in this body of research shifted to testing different methods of improving the patients’ communication skills. With intellectual capabilities intact, not being able to express basic wants and needs leads to obvious frustrations and even depression in some patients. Since language One-Handed Simplified Signs 7 defines most human interaction, helping these patients regain that critical ability underscores the importance of this area of research. While some patients will make a recovery, if quick progress in regaining normal language capabilities does not occur the resulting damage will likely become permanent and alternative communication systems become more important. A wide array of individual differences, depending on the location and extent of the injury, causes the deficits to range from jumbled speech to a total lack of understandable communication. There are several types of aphasia, all resulting in various impairments of language output. There have been dozens of ways to describe different types of aphasia, but the National Institute of Health’s National Institute on Deafness and Other Communication Disorders offers these guidelines for a general aphasia diagnosis: “The examination includes the person’s ability to speak, express ideas, converse socially, understand language, read, and write, as well as the ability to swallow and to use alternative and augmentative communication.”iv From this general definition, further study of the specific types of deficits and language errors a particular patient displays would indicate the type of aphasia. The three most often observed aphasias include Broca’s aphasia, Wernicke’s aphasia and global aphasia. The first two types, named after the areas of the brain predominantly damaged, show nearly opposite language issues. Broca’s aphasic patients generally use words in an understandable order, but tend to rely solely on nouns and verbs. Their speech is characterized by long pauses, and an apparent struggle to come up with the correct word. In contrast, Wernicke’s aphasic patients appear to have grammatically fluid speech, but closer inspection reveals the unintelligibility of the content. Both of these aphasias derive from damage to very One-Handed Simplified Signs 8 specific areas in the brain that then provides the name for the aphasia. Global aphasia occurs with the destruction of a larger area of the left hemisphere. The extent of the damage corresponds to severe problems with language production. Most patients have little to no spoken or written language, and comprehension seems equally devastated. In addition to all the variations among aphasia types, a wide variety of individual differences exist reflecting the fact that the damage each patient suffers differs. Even within types, patients will show variation in their language capabilities. This might impact the decision to use a particular treatment over another to most benefit a specific patient, reflecting their individual capabilities and deficits. Additionally, besides language impairment, aphasias often co-occur with weakness or paralysis of the extremities, typically those on the right side of the body. This condition, known as hemiplegia, does not occur in all aphasic patients, but happens enough to make it an important limitation to consider when assessing possible augmentative or alternative communication systems for a patient. Aphasia Pa tients and Deficit Studi es Before addressing possible treatments for aphasic patients, I will explore some of the literature on how the study of aphasic patients has greatly contributed to our understanding of language, particularly signed language in comparison with its spoken counterpart. Deficit studies have often played a prominent role in mapping the functions of different areas of the brain, and the study of language particularly benefits from these unfortunate accidents. This particular type of research occurs when someone sustains a brain injury and then researchers subsequently determine the specific areas damaged and One-Handed Simplified Signs 9 the nature of the resulting impairment. For example in studies of language deficits, comparing the grammatical, syntactical, phonological and semantic aspects of a patient’s language production with that of someone without any brain injuries might suggest that a certain area of the brain contributes to that specific component of language output. More specifically, this section will address studies focused on sign language with the dual goals of identifying which brain structures contribute to signed language and the similarities and differences between the areas used in verbal and signed communication. These studies support relatively recent claims that signed language meets the requirements of a full and rich language by using many of the same areas of the brain as spoken languages. The differences in brain structure use might suggest a way for patients who have lost their traditional verbal language skills to regain communication via a different language modality. Before examining how deficit studies might suggest a treatment for aphasic patients through the brain’s differences in processing signed languages, it is important to establish the similarities with its verbal counterpart. It has been widely recognized that damage to the left hemisphere greatly impacts verbal language output. Only recently has interest in signed language prompted scientists to attempt to determine if the effects are similar for a Deaf person who used signed language as their primary or only means of communication. Finding someone who was both a native signer and suffered from a relatively uncommon brain lesion proved to be a challenge in the conduct of these studies, however, because very few people would fall into both categories. In some ways, the case studies that have been carried out meet expectations by showing a similar pattern of language damage in Deaf aphasics as compared with spoken One-Handed Simplified Signs 10 language users. For example, in a recent study, a man who had been Deaf since infancy and a fluent user of Japanese Sign Language suffered a left occipital lobe lesion and experienced sign language aphasia (Saito, Otuski, & Ueno, 2007). As a result of his injury, the man could follow a few very basic signs, but lost all ability to fingerspell, a technique found in sign languages around the world where each letter in the alphabet corresponds to a handshape and these handshapes are then signed in sequence to spell a word that does not have a traditional sign, such as a proper noun. Like hearing aphasics, this patient’s ability to comprehend written words also suffered. He could not correctly read a sentence that he had written down himself. His sign production included manual phonological errors that mimic those that occur in the spoken language counterpart. Verbally, patients might substitute one phoneme they hear for a similar one while this patient would often mistake similar looking handshapes. This supports the argument that damage to the left hemisphere affects signers and speakers of oral languages in similar ways and that the brain structures in that area support language regardless of modality. The authors of the study did note some obvious structural differences in this case study, primarily the fact that this man’s damage occurred in the occipital lobe. The study acknowledges that while sign language does appear to rely on many language structures shared across modalities, signed language is an inherently visual language and thus does involve some different areas of the brain. In this particular instance, damage to the occipital region was seen as being critical to signed language in the same way a lesion to the auditory cortex would impact a hearing person’s language. This finding supports an earlier literature review published in 2000 that provides a broad overview of these types of deficit studies and addresses not only the similarity in One-Handed Simplified Signs 11 structural function but also the importance of the differences in right hemisphere use in signers versus hearing people. Ronberg, Soderfeldt and Risberg (2000) described signers whose aphasic symptoms match those demonstrated in hearing patients diagnosed with Broca’s or Wernicke’s aphasia. For example, posterior left-hemisphere lesions led to “fluent” looking signs but with issues in sentence comprehension and sign recognition. Essentially the syntactical structure seemed to be intact but the content of the sentences made no sense, as is typical for a person with a Wernicke’s aphasia. Signers with anterior left hemisphere brain damage had non-fluent production, characteristic of the short, choppy sentences of Broca’s aphasia, and few comprehension problems. While these findings do support the critical structural connection between spoken and signed languages, the Ronberg et al. review goes on to emphasize the structural differences between the two languages. As noted in the Saito et al. article, signed language depends on visual rather than auditory input, and some different brain structures must be used to process this information. The ways in which the right-hemisphere contributes to signed language comprehension are still being studied. One documented phenomenon includes differing patterns of right hemisphere activation between signers and speakers. In people who use signing as their mode of communication, homologous areas of the brain are activated on the left and right side, while spoken language users show a distinct proclivity for the left hemisphere alone. Additional difference in brain activity demonstrated that signers process language input differently from other gestural or spatial input in the right hemisphere. One case study reviewed in the Ronberg et al. article describes a Deaf patient with a right-hemisphere lesion that resulted in radically impaired artistic non-language skills but had no impact on her ability to use American One-Handed Simplified Signs 12 Sign Language. As this case study and others reveal, the spatial cues such as mapping and complex perspective taking inherent in signed language impact the use and strength of various brain areas, owing to neural plasticity (though without precise neuroimaging, the brain areas involved in language use both before and after the trauma cannot be pinpointed). These strengthened right hemispheres in signers allow for some of their native linguistic components to remain intact even when other non-linguistic spatial components or the left hemisphere is damaged. The authors suggest that this new understanding of the right hemispheres capacity for some aspects of language might point to a potential treatment for the more typical hearing aphasic patients. A group of British researchers have furthered these claims and focused particular attention on Deaf aphasics by distinguishing between signs and gestures, as well as by using sign to cue a spoken language (Marshall, Atkinson, Woll, & Thacker, 2005). As the title suggests, “Aphasia in a user of British Sign Language: Dissociation between sign and gesture” details one aphasic patient’s ability to understand non-linguistic gestures but not signs. It would seem plausible that gestures and signs would be processed in the brain in the same way because they are both visual, uses the hands, and contain movement to communicate some type of information, however rudimentary. This study features a Deaf man with a clear case of anomia, a deficit in word retrieval (also found in hearing patients). Despite suffering from a severe aphasia, his ability to understand and repeat nonverbal gestures was intact. Regardless, the brain damage he sustained made it impossible for him to produce a particular sign when prompted, even if he could easily imitate a very similar gesture. Despite their apparent similarities, gestures and signs One-Handed Simplified Signs 13 register in the brain differently, which might impact the possible types of treatments considered for persons with aphasia. The most illuminating deficit study, in terms of its clear implications for possible treatment, also comes from Marshall and her colleagues. She and her fellow researchers located a Deaf woman who knew English in addition to British Signed Language (Marshall, Atkinson, Smulovitch, Thacker, & Woll, 2004). Like previous case studies, this woman developed her aphasia after suffering a left hemisphere trauma. As a result, she essentially lost her capability to understand both languages suggesting a shared central area for semantic processing. Despite the severity of her language loss, the researchers found one promising area, not for recovery, but for re-establishing some kind of minimal language use. The study found that if she was cued with a BSL sign then she could be prompted to say an English word. This did not apply if nonverbal gestures replaced BSL signs as the cue. Despite the fact that the cuing findings only applied to nouns, this opens up a new approach for improving aphasics’ language abilities. As I will discuss in the following section on treatment studies, a major concern with using signed language to help patients communicate is the fear that doing so would eliminate any chance of spoken language recovery. This study demonstrates that in fact the two different languages, when used in conjunction, may actually help improve language skills rather then hinder them in a particular modality. All of the above deficit studies do have limitations that should be addressed when considering the implications of their findings, despite being a commonly used research method. First, the majority of these studies follow only a single participant. They feature a case study format that does not meet the requirements of an experimental design; One-Handed Simplified Signs 14 therefore it is impossible to definitively say that brain damage to a certain area causes a certain type of deficit. Additionally, as a result of the individual differences between injuries, these studies are very difficult to replicate with precision. Most of the consensus across studies occurs when patients have injuries to the same general area of the brain, such as Broca’s or Wernicke’s. Yet the severity and exact boundary of the damaged area in the studies cannot be controlled. This makes the linking of a specific linguistic component with an equally specific area of the brain very difficult, if not impossible. Gestural Co mmunicatio n a s a Treatment for Aphasia As mentioned earlier, if rapid improvement over a matter of weeks in impaired language faculties does not begin soon after the brain damage occurs, then the chances for making a full recovery decrease dramatically. In the weeks and months following the initial diagnosis, patients typically begin courses of treatment focused specifically on regaining verbal communications. Unfortunately, some of these programs have seen very limited success. Despite these setbacks, scientists continue to look for methods to assist patients in regaining some type of communication skills. The findings from deficit studies of Deaf aphasics, such as the ones covered in the previous section, suggest a possible avenue for treatment. A change in communication modality may enable some persons with aphasia to use unimpaired areas of their left hemisphere. Moreover, as stated before, the right hemisphere plays a more robust role in the processing of signed languages than in oral languages. Patients that have severely damaged left hemispheres may be able to access at least some of the components of languages by tapping into the modality favored in the other hemisphere. This means One-Handed Simplified Signs 15 using some form of gestural communication, with its visuospatial orientation. The literature does not suggest teaching patients formal American Sign Language, or its equivalents, because the grammatical complexities would require more support than the damaged resources of the left hemisphere could provide. However, any form of communication, regardless of how limited in scope and normal fluency, could improve the quality of life for patients with no or few alternatives. The focus of this area of research includes establishing gestural communication as a possible treatment course and then specifically what type of system would be most appropriate to teach to patients. The initial results from research using signed language with aphasic patients looks promising, and E. James Moody’s (1982) article “Sign language acquisition by a global aphasic” explores possible reasons why signs may be effective, as well as noting the drawbacks to this approach. Global aphasics typically have the most severe and widespread trauma of aphasic patients and, consequently, a grim prognosis for language recovery. Moody postulated that despite the severe damage to the left hemisphere, patients could understand words and make the connections necessary to use them through the right hemisphere even if they lacked the capability to express them verbally. To compensate for the inability to produce coherent verbal output, Moody suggested that a communication system consisting of gestures or signs might fill this gap. He offers several reasons why this approach proves more feasible than a verbal treatment. First, as already suggested, the brain areas, such as centers for processing visual input, remain intact and signs would utilize these areas whereas verbal communication could not. Second, teaching a patient how to use gestural communication would be much easier than trying to help them re-learn verbal communication, for several reasons. Signs have a One-Handed Simplified Signs 16 longer production duration than spoken words, so for a patient who needs more time to process input, this may prove useful. In terms of the patient’s sign production, a researcher or teacher can easily help shape the hand to form a sign correctly. Most verbal phonological sounds made by various positions of the mouth and tongue cannot be easily shaped with external help. Signs, some of which are one handed, could circumvent the oral apraxia typical of global aphasia that makes speaking difficult as well as largely avoiding any hemiplegia in one arm. Finally, while most signs do not represent their meaning, in these treatment scenarios iconic signs can be selected or created. These would be easier to learn and use, especially since the right hemisphere typically processes more concrete things. Moody put these ideas to use in a case study involving a global aphasic. The patient was exposed both to signs and speech in a Total Communication approach, which entails using verbal production and signs simultaneously. Not surprisingly, given the severity of the patient’s injury, speech attempts failed. Moody did find, however, that the patient had some communicative success with a limited number of signs. For a global aphasic to regain any form of communicative ability marks a huge advancement, regardless of the limited scope of his or her signing. Despite the relative success, there were some notable limitations. Moody’s patient acquired nouns better then verbs and had to avoid cognitively similar words, particularly if the signs looked similar. For example, the patient struggled with the signs for knife and spoon, cognitively similar in function and sign production. While the patient could correct some of his own mistakes, he still worked best when paired with a researcher speaking to him in order to prompt the signs. One-Handed Simplified Signs 17 While Moody’s results with a particularly severe case look promising, the issue of individual differences remains a problem. Another important early study not only consisted of an experiment testing gestural communication with a large number of participants for this type of research, but also looked at how the severity of the aphasia impacted the participants’ ability to use such an approach (Kelsch, Daniloff, Noll, Fristoe, & Lloyd, 1982). Fifteen aphasic patients were involved in this experiment, making it one of the largest studies of its kind. The experimenters divided the patients into three groups of five, based on the severity of their diagnosis. It should be noted, however, that even the highest functioning group did not include people with the most severe aphasic diagnosis. All of the patients suffered from unilateral left hemisphere cerebral damage: in most instances, this was caused by cerebral vascular accidents or strokes, though a few cases were caused by head trauma. Unlike most experiments in this field, this design did not use a spoken language component on the part of the experimenter or patient. Instead the researchers showed each patient a card with four simple line drawings on it in black and white in an effort to elicit a signed response. One of the images was the target, the image that the patient ideally recognized and then made the corresponding gesture, the second was a foil similar to but not the target, and two unrelated drawings. There were twenty-four cards, half depicting objects and half depicting actions. The selection of the images used related to the basic needs of patients, in order to produce attempts at relevant communication. The patients produced their response using gestures from American Indian Sign, also known as AmerInd, chosen because of its high proportion of iconic signs, which while not as extensive as One-Handed Simplified Signs 18 initially thought, far outnumber the proportion of iconic signs in languages such as ASL (Daniloff, Lloyd, & Fristoe, 1983). The results from this study indicate that, within a certain range, the severity of the aphasia does not impact the patients’ ability to use the AmerInd signs. Rather then severity, factors such as the patients’ listening ability correlated substantially to the ability to produce more signs in the correct context. This suggests that, unlike previously thought, that even patients with moderate brain damage might benefit from this treatment approach. This experiment also excluded patients with the most severe impairments, so that this study provides little insight on the effectiveness of this type of approach with that specific population. Unlike the Moody study, Daniloff and her colleagues found that patients more easily identified action pictures than the object pictures. These results stand out in this body of research because most researchers find that nouns tend to be more memorable. A possible explanation for these results might be found in the study’s design. This study used a recognition paradigm rather than a recall based experiment. While the 15 patients in this study represent a large sample size using a gestural communication system, carrying around a series of cards to prompt responses may not be feasible beyond the lab setting. While Danlioff’s study successfully used gestures, many patients and their family members primarily focus on reestablishing spoken communication. In some cases this might be incredibly difficult to achieve and others might be able to make only a minimum amount of progress. While ultimately gesture based communication might be the most effective way to regain any type of effective communication skills, some people hesitate to pursue this course of action for fear that it will prevent any spoken language One-Handed Simplified Signs 19 recovery. The literature suggests that this does not occur, and in fact, gestures or signed language actually support spoken communication. In “Verbal and Simplified Sign System Treatments in Adults with Anomia of Speech”, (Morgenstern, Braddock, Bonvillian, Steele, & Loncke) looked at a multimodal approach with three aphasic patients with Alzheimer’s disease. The researchers used two treatments, a verbal communication approach and a simplified sign approach. The simplified sign system, originally developed by John Bonvillian and Nicole Kissane to help children with autism, consists primarily of signs taken from various sign languages throughout the world and new signs created specifically for this system. The signs strive to incorporate only the most simple handshapes and movements to achieve iconic, easy to form signs. There are over 1,000 signs in the simplified sign system, but it intentionally lacks the necessary components needed to qualify as a language. Instead, the system is designed to supplement users with poor verbal skills, and for the most severe cases, stand in as a mode of communication when the user cannot learn a full language. In this study, the patients each received both treatments in reverse order. The most important finding of this study is that the signs helped to fill in the gaps with speech and promoted the use of speech. In no way did the simplified signs seem to prevent speech. One limitation of this research, which occurs in many of these treatment programs, involves generalizing the lessons beyond the laboratory setting. Sitting with a researcher, a limited number of words or signs might be produced but eliciting the same responses elsewhere proves to be more difficult. Additionally, while some patients seem to benefit more from simplified signs, others do not and respond better to a speech-based intervention. Determining the best candidates for simplified sign use out of the larger pool of aphasic patients will One-Handed Simplified Signs 20 eventually become an important area of study. While this is something to be addressed in future research, it is important to remember that even if the results are limited, it is better for these patients to have a few critical words or signs with which to communicate than none at all. Conclusions a nd Future Research The study of signed language and aphasia patients proves to be a rich field, providing new and interesting data benefiting everyone from neuroscientists to the patients themselves. Data from deficit studies provides biological information to support the linguistic conclusion that American Sign Language meets the criterion for a fullfledged language by suggesting that some brain structures support language function regardless of modality. Signed languages do take greater advantage of the right hemisphere than spoken language, which illuminates a potential pathway to communication for people with damage to the left hemisphere. A variety of treatment options exists for patients suffering from aphasia, many of which utilize some form of signed language to complement or supplement oral language. These treatments, while limited to a finite number of words, provide some relief for patients who, despite serious language impairments, have not lost their intellectual capabilities. The present study focuses on developing a sign-based approach that can be easily implemented outside of the laboratory. As previous researchers, such as Moody, have recognized, no current signed language adequately meets the needs of this population. American Sign Language and other genuine signed languages used by Deaf persons feature too many non-iconic signs and often use difficult to form handshapes and One-Handed Simplified Signs 21 complex series of movements. Some studies have used AmerInd, as developed by Skelly, but this is a small and limited system of only 236 signs. The Simplified Sign System (Bonvillian, Kissane, Dooley, & Loncke, in press) used in the Morganstern study, provides the framework for attempting to develop a better fitting system. This system uses many iconic signs, single gestures, and basic handshapes, and focused on a core, functional, vocabulary. Modifications were made to many of the signs to use this system with aphasic patients. These modifications were made because of the hemiplegia that often co-occurs with patients’ language disabilities. Some of the original signs are one handed and remain the same in the present system. Others were two-handed symmetrical, meaning both hands use the same handshape and motion simultaneously; these signs will be retested to see if they can be performed with only one hand and retain their ease of recall. Still other signs in the Simplified Sign System do not fit into either of these categories, meaning that they use two hands doing two different things. For these signs, serious modifications were made in sign formation and completely new signs were devised. The present study tests the memorability and ease of formation of these signs, by asking non-impaired undergraduate students if they can recall the signs after being shown a list of signs. If the majority of the participants can perfectly recall the sign, then it will be saved for use with aphasic patients. If there are errors, the sign will be redesigned and tested again. The present study examines the results from testing of the first 240 words in the system. Ultimately, future research will be needed to finalize the remaining signs, test the signs with actual aphasic patients, and determine which members of this group would benefit the most from undergoing a sign treatment option. This pursuit of an effective One-Handed Simplified Signs 22 one-handed sign system would require multiple steps, but could potentially help in the treatment of many aphasic patients. With a surprisingly large number of individuals with aphasia affected, both in the U.S. and overseas, it is critical that psychologists, linguists, and others continue to pursue the best avenue of communication therapy for this language disorder. Methods Participants The participants were 29 undergraduate students from the University of Virginia. The results from 28 of these participants were used in data analysis. Approximately twothirds of the participants were female. They participated in order to earn credit for research participation in their introductory psychology course. As part of the prescreening process, only students who stated that they were unfamiliar with a signed language were invited to participate in the study. None of the participants had an obvious disability that would have prevented them from seeing or reproducing any of the signs. Each person participated in an individual session that lasted approximately forty-five minutes. One student was not included because of an obvious sign production error on the part of the experimenter. Materials The first step in developing this one-handed version of the simplified sign system was determining which signs needed to be tested. Of the slightly over 1,000 entries in the original Simplified Sign System, almost 400 were already one-handed and were not tested again. The remaining signs needed to be redesigned and then retested to ensure One-Handed Simplified Signs 23 they did not lose their ease of formation and memorability in their new form. Many of the remaining signs were two-handed symmetrical, meaning that both hands used the same handshape, motion, location and orientation and mirrored each other. Those signs were all retested using one hand, but the components of the sign stayed the same. The rest of the signs were two-handed asymmetrical, and required more effort to modify them into a one-handed version. Because of the constraints of this approach, some signs bear relatively little or no resemblance to their two-handed counterparts. Those signs that were created specifically for use in the one-handed system were designed with some general guidelines. First, signs had to have simple, predominantly unitary movements. Second, signs were intended to be iconic, in that the form and meaning of each sign was clearly related to its referent. Third, all signs were intended to be easily distinguishable from other signs in the system, though signs with conceptually similar meanings tend to take similar forms. Finally, the handshapes of the signs were primarily limited to those that are the easiest to form, including the A-hand, B-hand, 5hand, C-hand, O-hand, baby O-hand, and G-hand (index finger). Two sets of 120 signs were composed from the large lexicon of potential one-handed simplified signs. Each set of 120 signs was divided into six lists of twenty words. The lists were designed to reflect a variety of sign forms and meanings. This helped to prevent signs from being presented close to others that were conceptually similar, causing increased difficulty for the participant to recall a sign accurately. Within each list, signs were placed in a random order with the constraint of trying to avoid having similar formations demonstrated one after the other. Six signs from the original system, unaltered because One-Handed Simplified Signs 24 they were already one-handed, were used as a practice set for each participant to familiarize them with the procedure of the experiment. Procedure Data from 14 participants were examined for each set of signs. Each set of signs was presented to the participant in an individual session by an experimenter. The experimenter who presented the signs was not involved in rating the accuracy of each sign’s production. The participants were asked to recall the signs in a completely different order than they had been shown. The participants were informed that the study involved recall of one-handed signs and heard specific instructions about the task they were being asked to complete. The study was conducted in an office-like setting. The experimenter and the participant sat in chairs facing each other, while a rater sat to the side of the experimenter. The participants were informed that they would be viewing several lists of signs and that they would be asked to recall the signs they had seen, when prompted with the signs’ English translation equivalents, at the end of each list. The experimenter asked the participants that while they were being shown the lists that they not move their hands in attempts to mimic the signs. The participants were told that each sign would be demonstrated to them twice, but that during recall they only needed to produce each sign once (Appendix A). The components of the scoring procedure were explained to each participant. They were told the four aspects of each sign that the rater would be examining; location, movement, handshape and orientation. At that time, one sample sign was shown, and the experimenter reviewed each of the four components with the participant, demonstrating what would constitute the correct formation of each aspect for that sign, and what would One-Handed Simplified Signs 25 not. The rater looked at all of these components when determining the general score received for each sign, which could be either perfect, almost correct, wrong sign or no response (Appendix B). Signs that received a perfect rating were those that were identical to the sign presented by the experimenter. Almost Correct indicated that a sign produced by a participant was very similar to the presented one, but varied in one of the four components in a minimal way. The Wrong Sign category was reserved for signs that varied substantially from the one that had been demonstrated. This included signs that varied in two or more of the components, or in rare cases, signs that varied so much in one component that the sign was unrecognizable. A no response score meant that the participant failed to recall a given sign. Participants were instructed at the onset of the experiment that they could say “No Response” at any point during their attempt at sign recall, but were also encouraged to guess because there was no penalty for doing so. After showing each participant the sample sign, demonstrating signs from the practice list, and answering any of the participant’s questions, the experimenter began by presenting the first list of twenty signs. Signs and their English counterparts were presented approximately every five seconds. The participants heard the English translation equivalent one time, and were shown the sign twice. After going through each list, each participant was immediately asked to recall the sign when cued with the English word. The participant had ten seconds to attempt the sign before the rater gave a “No Response” score. After completing all six lists, the participant was debriefed about the study and any questions about the nature or purpose of the study were answered (Appendix C). One-Handed Simplified Signs 26 While the experimenter spent a considerable amount of time practicing the signs prior to the experiment, a video of all the signs was created to run simultaneously during the experiment. Only the experimenter could see this video; it was placed in a position that ensured the participant could not view the content. The video helped ensure that a high level of accuracy during presentation was maintained throughout the task, which required a lot of concentration and attention to detail. Additionally, the video helped maintain a consistent presentation time across participants. During recall, a separate rater scored each sign made by a participant. Over the course of the experiment, four different raters were used. An intense period of training occurred before each set prior to data collection to ensure an acceptable level of interrater agreement. Of the four raters, only one had significant experience with signed language, so this training period involved teaching the raters how to produce the signs. Each rater was given a written description of the signs. They had access to a video of the experimenter performing each sign that they used to study, in addition to meeting in person to practice each sign. In order to practice the scoring of sign formation, volunteers were solicited from friends and family members of the research team. These volunteers followed the same procedure as that of the actual experiment, including being provided with the informed consent agreement and the debriefing form. The raters practiced both individually and as a group. They practiced scoring the first set of word-sign pairs for nearly two months before formal data collection began to reach an acceptable level of inter-rater agreement in regards to the scoring of each of the different sign parameters. In general, an approximately 75% agreement between raters was established before data collection could begin. This number reflects the fine level of detail required to rate this One-Handed Simplified Signs 27 task, which exceeds that which would be required in a real life setting. Additionally, the raters had a higher level of agreement for some components, such as location, than others, such as handshape. Again, this reflects the difficulty of the task, as participants were often not as accurate in discriminating between certain sign parameters as the experimenter. After each set of 120 signs was tested on 14 participants, the results were analyzed. If 10 or more participants signed a word perfectly, the sign was added to the Simplified Sign lexicon. If 8 or 9 participants performed the sign perfectly, then the sign was retested without any changes being made in its formation. If fewer than 8 participants recalled the sign perfectly, the sign was redesigned, based on the type of errors made by participants as recorded by the raters. Two sets consisting of a total of 240 word-sign pairs were tested in this study and each was placed into one of three categories: Met Criteria, Almost Met Criteria, and Failed to Meet Criteria (Appendix D). After changes are made to the signs that failed to meet the 70 percent or higher recall accuracy criterion, the signs, will be retested on 14 new participants in future word sets. The written description of each sign that met the criteria was added to a one-handed simplified sign system dictionary created by the experimenter (Appendix E). After creating the initial concepts for the signs that needed to be tested, modifications were made to signs that did not meet the goal of having 70% or more of participants recall them perfectly for re-testing with subsequent sets of participants. One-Handed Simplified Signs 28 Results Sign Production and Recall Accuracy: Overall Findings For this study two sets, each containing 120 word-sign pairs for a total of 240, were tested for recall accuracy. For each set, the percentage of signs that met selection criteria, almost met selection criteria, and failed to meet criteria were calculated. To meet criteria, ten or more of the fourteen participants needed to perform the sign perfectly. To be included in the almost met criteria category, a sign had to have eight or nine participants form the sign correctly. The signs that fall into this category will be retested on fourteen new participants without being modified. If a sign had fewer than 8 people form it correctly, or not form the sign at all, resulting in a rating of “no response,” the sign was included in the failed to meet criteria category; this sign will be redesigned for testing in subsequent sets. Below are the scores for both sets and information pertaining to the overall percentage of signs that met criteria. (Table 1). Set Table 1: Percentage of Sign Recall Classifications (The raw score is first and the percentage follows.) Met Criteria Almost Met Criteria Failed to Meet Criteria 1 50 (41.67%) 8 (6.67%) 62 (51.67%) 2 38 (31.67%) 25 (20.84%) 57 (47.5%) All Sets 88 (36.67%) 33 (13.75%) 119 (49.58%) Total Scores for 121 (50.42%) Included in data with those that remain Met Criteria (Met +Almost Met) vs. Failed to meet 119 (49.58%) One-Handed Simplified Signs 29 Out of the 240 words, 50 words met the criteria for inclusion in the one-handed lexicon from Set 1 and 38 words passed from Set 2. While the number of words that passed from Set 2 is lower than those from Set 1, 25 words from Set 2 were almost perfect compared with only 8 words from Set 1. Overall, 58 words from Set 1 and 63 words from Set 2, for a total of 121 words, will remain in the study at the present time. These numbers are a combination of those word-sign pairs that passed the selection criteria and those word-sign pairs that were close to meeting the selection criteria. These latter word-sign pairs will remain in the lexicon as originally designed unless otherwise precluded by future testing. This means that just over 50% of the word-sign pairs that were tested in this experiment will remain in the one-handed sign lexicon while the other half will require extensive editing and retesting. Sixty-two word-sign pairs from Set 1 and 57 words from Set 2 fall into the failed to meet criteria category and are currently being redesigned for future testing. Criteria for Addition to Lexicon In order for a sign to be added to the one-handed simplified sign system lexicon it must be recalled perfectly by at least 70% of the participants. For each set of words, data from fourteen participants were included. Since 70% of 14 is 9.8, 10 or more participants needed to perform the sign perfectly for it to be included. Of the 240 word-sign pairs, 88 were recalled perfectly by 70% or more of the participants. It is felt that these signs were highly iconic and quite easy to perform. That is, they had an easily made handshape and a single movement. An additional category of “almost met criteria” also was included. These 33 word-sign pairs received 8 or 9 perfect recall scores; this number was just below the score of 10 needed for immediate inclusion in the lexicon. Since these signs One-Handed Simplified Signs 30 were just under the threshold for inclusion, the researcher decided to continue testing the unaltered signs again in future research to determine if the sign should be included in the lexicon. This was done because there were many signs that would have met criteria had several participants not chosen not to respond when prompted to repeat the sign. All signs in both sets that were rated as being performed as almost perfect, wrong sign or no response by over 30% of the participants (but did not fall into the category where 8 or 9 of the 14 participants tested accurately recalled the sign) were not added to the lexicon at this time. Information from scoring about the specific types of errors manifested was recorded for each sign that participants made incorrectly. This information was examined for patterns of errors that could indicate possible corrections to the sign. For example, the data from the sign AMPUTATE indicated that while the demonstration of the sign showed the flat hand moving back and forth across the arm, the majority of participants who produced this sign incorrectly held the flat hand stationary in the correct location. Therefore, in future sets the sign for AMPUTATE will be tested without the movement component to see if that improves recall. For signs that were recalled incorrectly but lacked a consistent type of error, entirely new forms of the sign were considered and will be retested in subsequent sets. See Appendix A for a list of all the signs, in the order in which they were tested, and whether they received scores that met selection criteria, almost met criteria, or failed to meet criteria. Discussion The results of this study are important for laying the groundwork for the development of a one-handed sign system for aphasic patients. Much future work, One-Handed Simplified Signs 31 however, remains to be done before the system can be introduced and tested with the target population of persons with aphasia. Since the system being developed in the present study is based on a previous research project, I will compare the two projects. The research conducted by Kissane and Bonvillian (2001) aimed to develop a predominantly two-handed sign system, featuring iconic, easy to form signs. In that effort they were largely successful. As in the present study, Kissane tested her signs with undergraduate participants and the differences in results between that work and the present study broadly reflect the unique challenges encountered in developing a onehanded system. Next, I will discuss one of the greatest challenges and strengths of the present study by addressing the issue of inter-rater agreement. Inter-rater agreement was something I strove to achieve so that the resulting system could be as useful as possible, but this effort in turn may have tempered our results. This leads to the subsequent issues of the “Almost Perfect” results, which were included in the data in order to account for human error in the experiment, and consist of a large portion of our data. Finally, I will address general limitations to the study and what steps should and will be taken in the future in order to complete the one-handed sign system. The One-Handed System versus the Two-Handed System Reviewing the data from the study published on the two-handed system suggests that initial tests requiring undergraduate students to remember and produce two-handed signs were more successful for that version than they were for the present study. Kissane (2001) reported that the mean percentage of word-sign pairs that received a perfect rating, based on six sets of words, was 82.98. This percentage is noticeably higher than the rate found for the testing of two sets of words in the one-handed version. Since Kissane ran One-Handed Simplified Signs 32 more sets of words, it would appear possible that she simply had some sets that were more successful and increased the mean of the data overall. However, her set with the lowest mean percent of word-sign pairs with a perfect score was 75.67, considerably higher than the rate found in the present study. There are at least several reasons this could be true. First, word-sign pairs that did not initially receive perfect recall scores were redesigned and retested in later sets included in the data that she presents. Since the signs are redesigned based on insight from the mistakes participants made in original testing, it is not surprising that the second time these signs were tested that they are more likely to be successful and would contribute to an overall higher score. Kissane discusses this factor, which is also consistent with the fact that her last set of word-sign pairs received the highest mean recall percentage receiving a perfect score. More importantly, the differences in the number of words receiving perfect scores can be attributed to the increased challenge of performing signs one-handed. These signs are not as likely to be iconic as their two-handed predecessors, simply because the parameters of the sign are severely limited when the one-handed constraint is added. If the signs are less iconic, they are less likely to be remembered. Additionally, there are a decreased number of combinations that can be made with one hand (in terms of how and where a sign is formed) that still fit the standard of using the most basic handshapes and the simplest movements. It was important to not have signs look the same (though to some extent signs with cognitively similar meanings will look more similar, particularly if the researchers are striving to have them be as iconic as possible.) This constraint led to signs being altered formationaly to distinguish them from one another, but may have made it harder for participants to see how a sign was iconic. For example, many signs in One-Handed Simplified Signs 33 the two-handed system use a flat, stationary hand as a base for the primary movement of the sign on the other hand. This could be an arm or a hand representing a table, plate, piece of paper or other similar surfaces with which the action of the other hand, in conjunction with the first, makes it clear what the sign is supposed to signify. In the onehanded version it is much more difficult to establish these types of locations, which in turn may make it more difficult to understand the meaning of the sign. This is why it is so important to test the signs on undergraduate participants, because they show which signs are likely to be remembered and their errors may be indicative of a better way of producing the sign. It is important to note that in Kissane’s thesis, the signs that she tested came from existing signed languages from around the world. It would make sense that signs being used as part of an existing language are easy to remember, compared with signs that, once modified to be one-handed, do not always resemble a sign being used elsewhere. Additionally, as more signs were added to the two-handed version (Bonvillian, Kissane, Dooley & Loncke), many of them had to be created by the investigators, much like in the present study. Overall, for the slightly over 1,000 signs n the two-handed version, about 2/3 of the signs that were tested met the selection criteria. The Problems and Importance of Inter-rater Agreement The biggest challenge, and one of the greatest strengths of this experiment, was its commitment to establishing and maintaining a high level of inter-rater agreement. A total of four research assistants, three each semester that data were collected, coded the sign formation data. Much like the people who will ultimately be using this system, their previous experience with sign language reflected a wide range of backgrounds from no One-Handed Simplified Signs 34 prior experience to multiple years of formally studying American Sign Language. Prior to beginning data collection, this lab group spent multiple weeks practicing coding sign production as both individuals and as a group, to ensure that similar errors were being coded in a uniform manner. This process revealed many things about the sign system. First, it became apparent that some aspects of coding were easier to agree upon than others. For example, coding the location for a sign is relatively easy because it is easy to ascertain where a sign was performed. Accurately coding for handshape and orientation proved to be relatively more challenging. The differences we were looking for often were quite small. In many instances, the line between a sign being performed perfectly and almost perfectly was slight. For example, a hand might be tilted slightly further than the written definition for the demonstration to be deemed “perfect.” Often times these differences, while important in coding, would not inhibit the typical user from understanding the sign. To compare it with spoken word production, these differences would often be unnoticed differences in articulation that most listeners in a conversation would not really focus on. More noticeable differences did not alter the meaning of the sign, for example repeatedly bending the fingers of the V-hand in RABBIT (as if accentuating the hopping motion of the animal in the fingers that represent its ears). In the larger picture, this is roughly equivalent to people from different regions saying a word with different accents. People generally would not have an issue understanding the sign, but it deviated noticeably from their own way of producing it. When these situations arose, the signs were coded as almost perfect and the specific errors noted. If the sign did not meet criteria overall, then these notes were used to help redesign the sign. One-Handed Simplified Signs 35 The greatest difficulty in coding is that people, particularly those unfamiliar with signed language as the participants were, are incredibly sloppy signers. There are several handshapes that are distinct from others by very few elements. For example, the fivehand is a hand held out with all of the fingers extended and a flat-hand is the hand held out with the fingers together. The only difference is the arrangement of the fingers. Often when participants were asked to sign a word that involved these handshapes what they produced was somewhere in between the two, meaning that the fingers were neither fully together nor fully spread apart. This made coding quite difficult. Since the coders were specifically told to be aware of these issues, they rated these elements very strictly, which may account for our lower percentage of perfectly recalled signs. However, it means that words that did meet criteria passed a very rigorous testing procedure and will likely hold up in future testing and use. The Almost Perfect Selection Criteria Category After reviewing the data, there were several words that just barely missed meeting the criteria for being included as a a sign in the lexicon. Taking into consideration the level of detail with which we coded the data and the difficulty of the task, it is possible that testing the unaltered sign on a second set of participants would demonstrate that it was worthy for inclusion into the system. As discussed in the previous section, the difference between almost perfect and perfect could be very slight and, in practical use, would have little impact on a person’s ability to understand the meaning of the sign. Since a total of 33 word-sign pairs fell into this category, demonstrating that this could potentially be a relatively common phenomenon, it seemed reasonable to retest the words rather than trying to recreate them. One-Handed Simplified Signs 36 Given the difficulty of creating new signs that are both iconic and easy to form, I felt that it is more important to focus on redesigning signs where the vast majority of participants did not recall the sign or those who did recall the sign did poorly so that they were given a score of “Wrong Sign.” However, it will be important to restest the signs with an additional fourteen participants to ensure that these signs meet the standards applied to the other signs in the one-handed version. General Limitations Probably the most pertinent limitation to this study involves the differences between the population being tested in this experiment and the population the system is ultimately designed to benefit. For the initial testing of the signs, a convenient sample was used. Undergraduate students, who participated in exchange for psychology credit, were readily available. Additionally, it is practical to test the initial designs on a high functioning population first, with the understanding that many of those signs would not meet criteria. If a young person with no apparent mental or physical deficits has trouble remembering or executing a sign, then a patient with aphasia who is jointly suffering from a brain injury and a recently incurred motor impairment would presumably have even greater recall or performance difficulties. As will be discussed in the section on suggested future research, once all of the signs have met the criteria from testing with undergraduates, it will be necessary to see if any unforeseen difficulties arise when the system is tested on actual patients with aphasia or traumatic brain injuries. Additionally, as was discussed in the Kissane study, the results from this experiment are limited by the fact that participants were tested in a laboratory setting using a cued recall procedure. Seeing a total of 120 novel word-sign pairs over a period One-Handed Simplified Signs 37 of less than an hour and then being asked to recall them does not accurately reflect the way that potential patients would use the system. Signs would have to be taught over time, and patients would be using them in context to facilitate or supplement communication, rather then recalling seemingly random signs or gesture in a vacuum, as the participants in this study were asked to do. Additionally, this can be a very cognitively demanding task so hopefully, gradual, daily practice would lead to better sign production overall. Future Work As has been suggested previously, there are many additional steps that need to be taken before the one-handed sign system is complete. Roughly 300 word-sign pairs still need to be tested in their proposed forms. Additionally, all of the signs that did not meet criteria in this study need to be redesigned and retested to see if the changes help participants recall the sign perfectly. After this process has been completed, a sample of patients with aphasia will need to be gathered to see if there are unforeseen issues with this system that should be modified before opening up the system to a broader aphasic population. Another issue that will certainly need to be addressed is determining which patients would benefit most from this system. As described in the introduction, there are a variety of different types of aphasias and a wide array of individual differences among patients suffering from the same type of aphasia. It will be important to investigate what types of patients would most benefit from this proposed one-handed sign system as opposed to other treatment options that are currently available. No one treatment system is going to benefit every patient, and it will be important to focus limited resources on One-Handed Simplified Signs 38 those with a certain aphasia type or severity that will most likely benefit from this approach. Additionally, some patients and their families may be opposed to using a sign system, fearing that it may prevent any recovery of spoken language. While previous research suggests that signing often facilitates spoken language rather than hinders it, a study examining this specific system in that context may help reassure wary patients and their families. i The National Aphasia Association, “Frequently Asked Questions”. The National Aphasia Association. iii Washington University in St. Louis School of Medicine, “The Internet Stroke Center” iv The National Institue on Deafness and Other Communication Disorders Website, “Aphasia”. ii One-Handed Simplified Signs 39 References Béland, R., & Ska, B. (1992). Interaction between verbal and gestural language in progressive aphasia: a longitudinal case study. Brain and Language, 43(3), 355385. Coelho, C.A. (1990). Acquisition and generalization of simple manual sign grammars by aphasic subjects. Journal of Communication Disorders, 23, 383400. Cumley, G.D., & Swanson, S. (1999). Augmentative and alternative communication option for children with developmental apraxia of speech: three case studies. Augmentative and Alternative Communication, 15(2), 110-125. Daniloff, J., Lloyd, L., & Fristoe, M. (1983). Ameri-ind transparency. Journal of Speech and Hearing Disorders, 48, 103-110. Helm-Estabrooks, N. (1984). A discussion of apraxia, aphasia, and gestural language. American Journal of Physiology, 246, 884-887. Kelsch, K., Daniloff, J., Noll, D., Fristoe, M., & Llloyd, L. L. (1982). Gesture recognition in patients with aphasia. Journal of Speech and Hearing Disorders, 47, 43-49. One-Handed Simplified Signs 40 Marshall, J., Atkinson, J., Smulovitch, E., Thacker, A., & Woll, B. (2004). Aphasia in a user of British Sign Language: dissociation between sign and gesture. Cognitive Neuropsychology, 21(5), 537-554. Marshall, J., Atkinson, J., Woll., B., & Thacker, A. (2005). Aphasia in a bilingual user of British Sign Language and English: effects of cross-linguistic cues. Cognitive Neuropsycholgy, 22(6), 719-736. Moody, E. J. (1982). Sign language acquisition by a global aphasic. Journal of Nervous and Mental Disease, 170(2), 113-116. Morgenstern, K., Braddock, B., Bonvillian, J., Steele, R., & Loncke, F. Verbal and simplified sign system treatments in adults with acquired anomia of speech. Unpublished study, University of Virginia, Charlottesville, VA. The national aphasia association: frequently asked questions. (n.d.). Retrieved from http://www.aphasia.org/Aphasia%20Facts/aphasia_faq.html The National Institute on Deafness and Other Communication Disorders: Aphasia. (2008, October). Retrieved from http://www.nidcd.nih.gov/health/voice/aphasia.htm One-Handed Simplified Signs 41 Pickell, H., Klima, E., Love, T., Kritchevsky, M., & Bellugi, U. (2005). Sign language aphasia following right hemisphere damage in a left handed signer: a case of reversed cerebral dominance in a deaf signer?. Neurocase, 11, 194-203. Ronberg, J., Soderfeldt, B., & Risberg, J. (2000). The cognitive neuroscience of signed language. Acta Psychologia, 105, 237-254. Saito, K., Otuski, M., & Ueno, S. (2007). Sign language aphasia due to left occipital lesion in a deaf signer. Neurology, 69, 1466-1468. Washington University in St. Louis School of Medicine: The internet stroke center. (n.d.). Retrieved from http://www.strokecenter.org/patients/stats.html One-Handed Simplified Signs 42 Appendix A Script to be read to each participant during the experiment. Researcher: Hello, thank you for coming in today to participate in our experiment. Before we begin, please read and sign the informed consent agreement in front of you. Take as much time as you need and feel free to ask me any questions. Thank you. Today we are going to test your recall of one-handed signs. This means that each sign will only be produced with one hand, and the other arm remains inactive, unless otherwise indicated. Each sign will be demonstrated twice as I say the English translation. I ask that you listen and watch carefully, but keep your hands still. You will hear the English translation and see the signs for several words in a list. At the end of each list, I’ll ask you an English word and give you 10 seconds to demonstrate the sign. There are four components of each sign that we will rate. These are hand-shape, location, movement, orientation. I will show you a sample sign now, and demonstrate these four components. (Show sample sign FUTURE and breakdown what makes up each of the four components.) When asked to recall the signs, do your best to reproduce the sign accurately. If you can’t remember a sign, you will not be penalized, just say that you can’t recall the sign and we will continue with the rest of the list. You will also not be penalized if you guess on the formation of a sign. You will see many words today, and you may feel that you only partially recall some, but feel free to guess. If you do not recall the sign at all, it is perfectly ok to say that you do not recall the sign. We will do one practice list so that you can see how the experiment will work. Do you have any questions at this point? (PROCEED WITH PRACTICE LIST) Any questions before we start the lists? (PROCEED WITH EXPERIMENT LISTS) We have now completed the experiment. In front of you is a debriefing form that provides additional information about this study, including who to contact if you have questions later. Do you have any questions now? Thank you for your participation. One-Handed Simplified Signs 43 Appendix B Sign Recall Scoring Sheet that the research assistants used to code the experiment. 1 Perfect Almost Correct 2 Perfect Almost Correct 3 Perfect Almost Correct 4 Perfect Almost Correct 5 Perfect Almost Correct 6 Perfect Almost Correct 7 Perfect Almost Correct 8 Perfect Almost Correct 9 Perfect Almost Correct 10 Perfect Almost Correct 11 Perfect Almost Correct 12 Perfect Almost Correct 13 Perfect Almost Correct 14 Perfect Almost Correct 15 Perfect Almost Correct 16 Perfect Almost Correct 17 Perfect Almost Correct 18 Perfect Almost Correct 19 Perfect Almost Correct 20 Perfect Almost Correct L: Location M: Movement L M HS O L M HS O L M HS O L M HS O L M HS O L M HS O L M HS O L M HS O L M HS O L M HS O L M HS O L M HS O L M HS O L M HS O L M HS O L M HS O L M HS O L M HS O L M HS O L M HS O Wrong Sign L M HS O Wrong Sign L M HS O Wrong Sign L M HS O Wrong Sign L M HS O Wrong Sign L M HS O Wrong Sign L M HS O Wrong Sign L M HS O Wrong Sign L M HS O Wrong Sign L M HS O Wrong Sign L M HS O Wrong Sign L M HS O Wrong Sign L M HS O Wrong Sign L M HS O Wrong Sign L M HS O Wrong Sign L M HS O Wrong Sign L M HS O Wrong Sign L M HS O Wrong Sign L M HS O Wrong Sign L M HS O Wrong Sign L M HS O HS: Handshape No Response No Response No Response No Response No Response No Response No Response No Response No Response No Response No Response No Response No Response No Response No Response No Response No Response No Response No Response No Response O: Orientation One-Handed Simplified Signs 44 Appendix C Memory and Recall of One-Handed Sign s: Debriefing Statement Thank you for your participation in our study. The long-term goal of our investigation is to develop a one-handed manual sign communication system for hearing persons who are unable to produce useful spoken language. Many of these people suffer from debilitating strokes that not only impair their ability to use spoken language but may have also left them partially paralyzed. These patients need a simple, one-handed manual sign system so they can communicate with health care professionals and loved ones. The project in which you just participated is one part of our long-term project. The manual signs you viewed were either modified from an existing simplified sign system created by John Bonvillian to benefit a larger variety of individuals, including those living with autism or an intellectual disability, or new signs created specifically for this study. Since many of the signs from the simplified system were changed to fit the one-handed need of our target audience, we needed to test them to see that they were still easy to recall and perform. Your responses (and those of the other participants) will help us in our sign selection process. If you (and other participants) remembered or reproduced a particular sign, then it is likely that that sign will be kept in our collection of hundreds of possible signs. If you forgot a sign or reproduced it inaccurately, then that sign will likely be dropped from our collection of potential signs or further modified and retested. Additional Readings (if desired) Bonvillian, J. D., & Nelson, K.E. (1982). Exceptional Cases of Language Acquisition. In K.E. Nelson (Ed.), Children’s Language (Vol. 3, pp. 322-391). Hillsdale, NJ: Erlbaum. Kilma, E. S., & Bellugi, U. (1979). The Signs of Language. Cambridge, MA: Harvard University Press. Skelly, M. (1982). Amer-Ind Gestural Code Based on Universal American Indian Hand Talk (3rd ed.). New York: Elsevier. Wilbur, R. B. (1987). American Sign Language: Linguistic and Applied Dimensions (2nd ed.). Boston: College Hall. One-Handed Simplified Signs 45 Appendix D This list contains all of the words tested in this experiment and the category they belong too after being tested on 14 participants. If 10 or more participants recalled the sign perfectly it was coded as Met Criteria, meaning it will be included in the lexicon as tested. If 8 or 9 participants recalled the sign perfectly it was coded as Almost Met Criteria, meaning the sign would not be changed but would be retested. If 7 or fewer participants recalled the sign perfectly, it was coded as Failed, meaning that the sign needed to be redesigned before being retested. Set 1 Information - Failed Faucet - Met Criteria Ketchup - Failed Quote - Failed Constipated - Almost Met Criteria Laundry - Failed Tape - Met Criteria Rabbit - Almost Met Criteria Nail Polish - Met Criteria Pants - Failed Tree - Met Criteria Gasoline - Met Criteria Help - Met Criteria Arithmetic - Met Criteria Umbrella - Met Criteria Slap - Met Criteria Return - Failed Safe on Base - Met Criteria Bible - Met Criteria Orange - Failed Diaper - Failed Video - Met Criteria Dizzy - Met Criteria Undress Ones Self - Failed Quarantine - Met Criteria Contact Lens - Met Criteria Rifle - Failed Cake - Failed Pain - Met Criteria Valley - Met Criteria X-Ray - Failed Wednesday - Failed One-Handed Simplified Signs 46 Pizza - Failed Sad - Failed Jump - Failed Boat - Met Criteria Walker - Failed Iron - Failed Dismount - Failed Edge - Failed Unite - Failed Who? - Failed Newspaper - Almost Met Criteria In Favor Of - Failed Die - Met Criteria Massage - Met Criteria List - Failed Sky - Met Criteria Teach - Failed Amputate - Failed Baby - Met Criteria Turtle - Met Criteria Here - Failed Sick - Met Criteria Gardening - Failed Hug - Failed Narcotic - Failed Compare - Failed Year - Failed Farsightedness - Met Criteria Toothpaste - Failed Socks - Failed Turn - Met Criteria Uncover - Failed Eight - Met Criteria Inspect - Met Criteria Fall - Met Criteria Dollar - Failed Scooter - Failed Wait - Almost Met Criteria Stand - Met Criteria Deep - Failed Rectangle - Met Criteria Same - Failed Dive - Failed One-Handed Simplified Signs 47 Stretch - Met Criteria Vagina - Met Criteria Earrings - Met Criteria Pie - Failed Rain - Failed Maybe - Met Criteria Tea - Met Criteria Measure - Failed Pancake - Met Criteria Halloween - Met Criteria Reach - Failed Hallway - Failed In Front Of - Failed Marker - Failed Tumor - Met Criteria Paperclip - Failed Saturday - Failed Table - Almost Met Criteria Napkin - Failed Kidney - Met Criteria Melon - Failed Love - Met Criteria Open - Failed Jaw - Almost Met Criteria Save - Failed Tear - Failed Ocean - Met Criteria Try - Met Criteria Medical Marijuana - Met Criteria Owl - Almost Met Criteria Palm - Met Criteria Tease - Met Criteria Hip Joint - Met Criteria Mean - Met Criteria Jelly - Failed Pantyhose - Failed Slide - Met Criteria Helmet - Failed Throw Away- Failed Read - Failed Hang - Met Criteria Knife - Failed Insomnia - Failed One-Handed Simplified Signs 48 Narrow - Almost Met Criteria Ice - Failed Set 2 Dance - Failed Make the Bed - Failed Now - Failed Sunday - Failed Headphones - Met Criteria Monster - Met Criteria Stuffed Animal - Failed Devil - Met Criteria Woman - Failed Squirrel - Failed Vacation - Met Criteria Circus - Failed Frown - Almost Met Criteria Piano - Met Criteria Freezer - Failed Lock - Almost Met Criteria Boots - Failed War - Met Criteria Lungs - Almost Met Criteria Lobster - Failed Ring - Met Criteria Grass - Failed Paint - Almost Met Criteria Music - Met Criteria Itch - Met Criteria Dress - Failed Penguin - Met Criteria Enter - Failed CD - Met Criteria Sweetheart - Met Criteria Weekend - Failed Either - Met Criteria Violin - Met Criteria Time - Met Criteria Chicken - Failed Hurry - Failed Butterfly - Failed Do Not Want - Failed One-Handed Simplified Signs 49 Diarrhea - Failed Salad - Failed Weak - Almost Met Criteria Notice - Failed Carrot - Almost Met Criteria Rice - Almost Met Criteria Stare - Almost Met Criteria Berries - Failed Sweater - Failed Exercise - Met Criteria Want - Failed Spaghetti - Failed Camera - Failed Bicycle - Failed Celebrate - Almost Met Criteria Heavy - Failed Heart - Met Criteria Middle - Met Criteria Wine - Failed Dress - Failed Swollen Glands - Met Criteria Calm Down - Failed Afternoon - Failed Eye Glasses - Met Criteria Drum - Met Criteria Computer - Met Criteria Nine - Met Criteria Poison - Met Criteria Cookie - Almost Met Criteria World - Almost Met Criteria CPR - Met Criteria Diabetes - Failed Hallucination - Almost Met Criteria Birth - Failed Battery - Failed Surprise - Failed Bracelet - Met Criteria Important - Failed Bathroom - Failed Memorize - Failed Again - Almost Met Criteria Vary - Almost Met Criteria One-Handed Simplified Signs 50 Coat - Failed Smile - Met Criteria Argue - Almost Met Criteria Sandwich - Failed Nearsightedness - Failed With - Failed Never - Failed Kick - Met Criteria Shampoo - Met Criteria Clouds - Failed Gather - Failed Trashcan - Met Criteria Rupture - Almost Met Criteria Donkey - Failed Parking - Almost Met Criteria River - Met Criteria Backpack - Failed Reflex - Failed Cast - Failed Parallel - Failed Fight - Met Criteria Immigration - Met Criteria Dark - Almost Met Criteria Gorilla - Met Criteria Clip Nails - Almost Met Criteria Noisy - Failed Elbow - Met Criteria Doll - Almost Met Criteria House - Almost Met Criteria Worship - Failed Microwave - Failed Swim - Almost Met Criteria Breathe - Almost Met Criteria Twist - Almost Met Criteria Necklace - Met Criteria First - Almost Met Criteria Attic - Failed Bra - Met Criteria Fence - Failed Hamburger - Met Criteria One-Handed Simplified Signs 51 Appendix E DMP Simplified Sign One-Handed Descriptions for signs that Met Criteria or Almost Met Criteria. Again The tip of the index finger of the pointing-hand (the index finger is extended from an otherwise closed hand), palm facing down and finger pointing diagonally forward, hops up the inactive forearm, several times. Again and again and again. Argue The pointing-hand (the index finger is extended from otherwise closed hand), palm facing in and fingers pointing forward, is held about a foot in front of the body. The hand arcs up and down several times. A frown or angry facial expression is appropriate. Wagging finger at someone. Arithmetic The stationary spread- or 5-hand (the hand is flat with fingers spread apart and extended), palm facing out and fingers pointing up, starts in front of the body. Starting with the thumb, the fingers are bent down one at a time, while the hand remains stationary. Using one’s fingers to do arithmetic. Baby One forearm is slightly bent at chest level, palm facing up and fingers pointing to opposite sides, as the arms swing from side to side. Cradling and rocking a baby in one’s arms. Bible The flat-hand (hand is flat with fingers together and extended), diagonally palm facing in and fingers pointing up, starts at eye level. The hand is then extended up, and the eyes follow the movement of the hand. A holy book is read and then raised on high. Boat The tips of the fingers of the flat hand (each hand is flat with fingers together and extended), palm facing up and fingers pointing diagonally forward, (to opposite sides), moves forward in front of the body in a gentle arcing movement. The bow of a ship moving through the water. One-Handed Simplified Signs 52 Bra The tips of the fingers of the curved-hand (the fingers and thumb are together and curved), palm facing up and fingers pointing across the body, are in front of the body. The edge of the little finger rests on the chest below the breast. A bra provides support for the breasts. Bracelet The tip of the index finger of the pointing-hand (the index finger is extended from an otherwise closed hand), palm and finger pointing down and knuckles pointing diagonally forward, points from one side of the inactive wrist to the other. (The finger may touch the wrist.) Indicates the location of a bracelet on one’s wrist. Breathe The spread- or 5-hand (hand is flat with fingers spread apart and extended), palm facing in and fingers pointing across the body, touches the chest, slowly move forward a few inches, and then returns to the chest. The rising and falling of the chest while breathing. Carrot The tip of the index finger of the pointing-hand (the index finger is extended from an otherwise closed hand), palm facing down and finger pointing diagonally forward, grazes the upper edge of the index finger of the inactive hand. The action is repeated several times. Peeling or grating a carrot. CD The tips of the fingers and thumb of the claw-hand (the fingers are spread apart and bent), palm facing down and fingers pointing diagonally forward, start at one side of the body. The claw-hand then moves a short distance to the opposite side and then down slightly. Picking up a CD/DVD and inserting it into a CD/DVD player. Celebrate The pointing-hand (the index finger is extended from an otherwise closed hand), palm facing across the body and finger pointing up, moves in small horizontal circles near the head. An enthusiastic smile or happy facial expression is appropriate. (To indicate the meaning “Turn Around (person),” make the sign with one hand and a neutral facial expression.) Waving party favors in celebration of an event; motioning to a person to turn around. One-Handed Simplified Signs 53 Clip Fingernails The tips of the index finger and thumb of the baby O-hand (the index finger and thumb are curved and touch at their tips from an otherwise closed hand), palm facing in and knuckles pointing diagonally forward and down, pinch the tip of the thumb on the inactive hand. (To indicate the meanings “Clip Toenails” or “Cut Toenails,” make this sign and then point to a foot.) Clipping one’s nails with a nail clipper. Computer The claw-hand (the fingers are spread apart and bent), palm facing down and fingers pointing forward, is in front of the body at waist level. The fingers wiggle as if typing. Typing on a computer’s keyboard (or a calculator’s keys). Constipated The index finger of the pointing-hand (the index finger is extended from an otherwise closed hand), points to the bottom. The hand is then brought to the front of the body and becomes the spread- or 5-hand (the hand is flat with fingers spread apart and extended), palm facing out and fingers pointing up. The intestine is full; waste is stuck and cannot be passed. Contact Lens The tip of the index finger of the pointing-hand (the index finger is extended from an otherwise closed hand), palm facing down and finger pointing diagonally forward, initially points into open space in front of the body at chest level. The tip of the index finger then moves to touch or nearly touch the face near one eye, rotating so that the palm faces in and finger points diagonally up. Putting a contact lens in one’s eye. Cookie The index finger and thumb of the G-hand (the index finger and thumb are extended from an otherwise closed hand and are parallel), palm facing down, fingers pointing across the body, make a circle on the back of the inactive palm. The hand then rotates and goes back to the mouth. A smiling or satisfied face is also appropriate. Using a cookie cutter to shape cookie dough. CPR The fingers of the flat-hand (hand is flat with fingers together and extended), palm facing down and fingers pointing across the body, initially is located in front of the chest. The hand then moves down and back up several times. One-Handed Simplified Signs 54 Pressing down on a person’s chest to pump blood through the heart and body. Dark The flat-hand (hand is flat with fingers together and extended), palm facing in and held near the head and fingers pointing across the body, initially is at the side of the head. It then arces diagonally down, passing in front of the eyes, to the chest, ending with the fingers pointing down. The sky becomes darker in the evening making it more difficult to see. Devil The knuckles and edge of the index finger of the pointing-hand (the index finger is extended from an otherwise closed hand), palm facing out and finger pointing up, rests on the temple (the side of the forehead). A fierce or mean facial expression is appropriate. Indicates the horns of a devil. Die Flat-hand (hand is flat with fingers together and extended), the palm facing up fingers pointing forward, initially is in front of the body. It then flips so that the palm is facing down. Passing over to the other side: from life into death. Dizzy Spread- or 5-hand (the hand is flat with fingers spread apart and extended), palm facing in and fingers pointing up, moves in small, vertical circles in front of the face. A sick or nauseated facial expression is appropriate. The head sways when one is dizzy or lightheaded. Doll The flat-hand (the hand is flat with fingers together and extended), palm facing in and fingers pointing diagonally up, hovers above the upper chest, as if cradling a doll. The hand then moves up and down slightly a few times, as if stroking the doll’s imaginary hair. Stroking a doll’s hair. Drum The flat-hand (hand is flat with fingers together and extended), palm facing down and fingers pointing diagonally forward, flips up and down in front of the body at waist level. Hitting a drum with one’s hands; drumming. One-Handed Simplified Signs 55 Earrings The knuckles of pointing-hand (the index fingers are extended from otherwise closed hands), palm and fingers pointing down and knuckles pointing in towards the face, touches the base of the ear. (Wiggling the fingers is appropriate.) Long earrings hanging from the ears. Eight Spread- or 5-hand (the hand is flat with fingers spread apart and extended), with palm facing out and fingers pointing up, rests at chest level in front of the body. The middle finger and the thumb both bend so that the tips touch, while the hand remains stationary. The ASL sign for eight. Either The tip of the index finger of the pointing-hand (the index finger is extended from an otherwise closed hand), palm facing down and finger pointing to the side and diagonally down, points to first one location in front of the body and then another. One or the other, but not both. Elbow The tip of the index finger of the pointing-hand (the index finger is extended from an otherwise closed hand), palm facing in and finger pointing to the side, touches the elbow of the inactive arm. Indicates the elbow. Eyeglasses The tapered- or O-hand (the fingers are together and curved, with the finger tips touching the thumb tip), palm facing across the body and knuckles pointing up, are placed just in front of the eyes. Indicates the shape of a pair of glasses. Exercise The fist (the hand forms a fist), palm facing up and knuckles pointing forward, initially is held out in front of the body. The arm, from the elbow to the hand, curls back in towards the body. Lifting weights and exercising. Fall The tips of the index and middle fingers of the V-hand (the index and middle fingers are spread apart and extended from an otherwise closed hand in the shape of a “V”), palm and fingers pointing down and knuckles pointing diagonally forward, initially hovers in space at chest level. The One-Handed Simplified Signs 56 V-hand then arcs down, rotating so that the palm and fingers point up and knuckles point down. The V-shape represents a person’s legs going up in the air as he falls down. Farsighted(ness) Bent-hand (the fingers are together and extended at right angles with respect to the palms), palms and fingers pointing up and knuckles pointing forward, are extended forward in front of the upper chest. Squinting is appropriate. A farsighted person often holds reading materials at a distance. Faucet Claw-hand (the fingers are spread apart and bent), palm facing down and fingers pointing forward, initially are a few inches in front of the body. The hand then twists. The action is repeated. Turning on a water faucet; turning a spigot or valve. Fight (physical) The fist (hand forms a fist), palm facing across the body and knuckles pointing diagonally up, initially are in front of the body at shoulder level. It then makes several vertical circles before the fist is quickly extended forward, palm facing down and knuckles pointing forward. Boxing; hitting a punching bag. First The fist (hand forms a fist), knuckles facing up and palm facing forward, starts in front of and to the side of the body. The pointing finger then flips up from the closed fist. Indicates the first digit of the hand. Frown The tip of the index finger of pointing-hand (the index finger is extended from an otherwise closed hand), palm facing in and finger pointing diagonally up, initially touch the center of the lower lip. The finger then arcs away from the center to the side of the mouth and down to the lower edge of the jaw. A frown or unhappy facial expression is appropriate. Drawing the lips into a frown. Gasoline The index finger of the pointing-hand (the index finger is extended from an otherwise closed hand), palm facing out and finger pointing up, is bent slightly as the hand tilts forward. One-Handed Simplified Signs 57 Pouring gasoline from a container. Gorilla The fist (hand forms a fist), palm facing in and knuckles pointing across the body, hits the chest several times. A gorilla beating its chest. Halloween V-hand (the index and middle fingers are spread apart and extended from otherwise closed hands in the shape of a “V”), palm facing in and fingers pointing across the face, touch the face with the index finger above the eye and the middle finger below. Peering out through the holes of a Halloween mask. Hallucination The tips of the fingers of spread- or 5-hand (hand is flat with fingers spread apart and extended), palm facing across the body and fingers pointing up, initially touch the temple (the side of the forehead). It then moves a short distance away, crossing in front of the eyes, with fingers wiggling. Imaginary perceptions and disordered thoughts often underlie hallucinations and delusions. Hamburger The C-hand (the fingers are together and curved, with the thumb opposite the fingers), palm facing in and fingers pointing diagonally up, initially is held in front of the chin. The hand then moves toward the mouth as the mouth opens. Holding and preparing to bite into a hamburger. Hang The tip of the index finger of the pointing-hand (the index finger is extended from an otherwise closed hand), palm facing diagonally out and finger pointing up, bends. The hand, at eye level, moves across the body. Hanging up clothes on a bar. Also can mean closet. Headphones The tips of the fingers and thumbs of C-hands (the fingers are together and curved, with the thumbs opposite the fingers), palm facing across the body and fingers pointing up, touch the sides of the head with the palms over the ears. (This sign may also be made with the fingers slightly apart.) Putting on headphones for a hearing test. One-Handed Simplified Signs 58 Heart The tip of the index finger of the pointing-hand (the index finger is extended from an otherwise closed hand), palm facing in and fingers pointing diagonally up to opposite sides, traces the shape of a heart on the left side of the chest. Indicates the stereotypical shape of the heart. Help The curved-hand (the fingers and thumb are together and curved), moves to the inactive arm and lifts the limb several inches. Helping to move the immobile limb. Hip Joint Fist (the hand forms a fist), palm facing in and knuckles touching the hip. The hand then rotates back and forth. Indicates the movement of a bone at a joint; cartilage covering a joint. House The tips of the fingers of the flat-hand (the hand is flat with fingers together and extended), palm facing across the body at a slight angle and fingers pointing forward, starts on one side of the body. The hand then moves diagonally up several inches before rotating, palm facing to the opposite side, and moves diagonally down. (To indicate the meanings “City,” “Community,” “Neighborhood,” “Roofs,” “Town,” or “Village,” repeat the sign as the hands move to the side.) The roof of a house; the many roofs in a neighborhood or town. Immigration The flat-hand (hand is flat with fingers together and extended), palm facing in and fingers pointing up, initially is about a foot above the shoulder with the arm raised to shoulder level and forearms upright. The hand then bends until the fingers point back. The action is repeated. Motioning someone to step forward for immigration processing. Inspect The tips of the index finger and thumb of the baby O-hand (the index finger and thumb are curved and touch at their tips from an otherwiƒse closed hand), palm facing down and knuckles pointing diagonally forward, start in the space in front of the body. The baby O-hand then moves straight up to eye level as the signer looks at it. Squinting is appropriate. Carefully inspecting or examining a small object taken from one’s hand. One-Handed Simplified Signs 59 Itch The tips of the fingers and the thumb of the claw-hand (the fingers are spread apart and bent), palm facing down and fingers pointing diagonally forward, slide across the upper thigh several times as the fingers move slightly. Scratching an itch. Jaw The tip of the index fingers of pointing-hand (the index finger is extended from otherwise closed hands), palm facing across the body and fingers pointing up, slides down the edge of the jaw from the base of the ear to the chin. Indicates a person’s jaw. Kick The pointing-hand (the index finger is extended from an otherwise closed hand), palm and fingers pointing down and knuckles pointing forward, is held in front of the body. The hand then rotates up until the index finger points forward. (Alternatively, one may mimic the action of kicking with one’s leg.) One leg kicks forward. Kidneys The tip of the index finger of pointing-hand (the index finger is extended from an otherwise closed hands), palm facing up and finger pointing diagonally back, initially is to the side of the body at waist level. The hand then moves to touch the lower back. Indicates the location of the kidneys. Lock The tip of the index finger and thumb of the baby O-hand (the index finger and thumb are curved and touch at their tips from an otherwise closed hand), palm facing to the side and knuckles pointing up, initially touches the inactive arm above the elbow. The active hand then twists forward so that the knuckles point forward. (To indicate the meaning “Unlock,” reverse the action of the sign.) Turning a key in a lock. Love Pointing-hand (the index finger is extended from an otherwise closed hand), palm down and finger pointing away from the body, is in front of the body at chest level. The hand then traces the outline of a heart in the air in front of the body. The shape of a heart. One-Handed Simplified Signs 60 Lungs The tips of the fingers and thumbs of the claw-hand (the fingers are spread apart and bent), palm facing in and fingers pointing across the body, touch the upper chest and then slide down about a foot. Indicates the location of the lungs. Massage Curved-hand (the fingers and thumbs are together and curved), palm facing down and fingers pointing back, squeeze or press down on the top of the shoulder several times. A smile or happy facial expression is appropriate. Kneading a person’s aching shoulder muscles. Maybe The tips of the fingers of the flat hand (each hand is flat with fingers together and extended), start with the palm facing up in front of the body. The hand then rotates so the palm is facing down. The action is repated. Wavering in making a decision; things are iffy. Mean Pointing-hand (the index finger is extended from an otherwise closed hand), palm and fingers pointing diagonally down, are held in front of an eyebrow. A frown, scowl, or unhappy facial expression is appropriate. Indicates the shape of the eyebrows while scowling. Medical Marijuana The base of the baby O-hand (the index finger and thumb are curved and touch at their tips from an otherwise closed hand), palm facing down and knuckles pointing up, touch the lips. Smoking medical marijuana. Middle The tip of the index finger of the pointing-hand (the index finger is extended from an otherwise closed hand), palm and finger pointing in toward the body and knuckles pointing to the side. Points at the upper chest, then moves straight down, and stops around the navel. Drawing an imaginary line down the middle of the body. Monster The claw-hand (the fingers are spread apart and bent), palm facing out and fingers pointing up, initially are extended out to the side of the body at head level with the arms bent slightly. The hand then bends forward from the wrists several times. A fierce or mean facial expression is appropriate. A monster making menacing gestures. One-Handed Simplified Signs 61 Music The pointing-hand (the index finger is extended from an otherwise closed hand), palm facing down and finger pointing forward, initially is held in front of the body. The hand then arcs to one side and back to the center several times. (To indicate the meanings “Choir” or “Sing,” open the mouth.) Conducting the music of a choir or orchestra. Nail Polish The claw-hand (the fingers are spread apart and bent), palm facing in, is held near the face. The hand moves back and forth in front of the mouth while air is blown across the nails. Blowing on freshly painted nails to help dry them. Narrow The index finger and thumb of the G-hand (the index finger and thumb are extended from an otherwise closed hand and are parallel), fingers pointing forward. The hand starts at shoulder height and moves down. Showing with your hands the narrow width of something. Necklace The tip of the index finger of the pointing-hand (the index finger is extended from an otherwise closed hand), palm facing in and finger pointing diagonally up across the body, initially starts to one side of the neck. The hand then moves down and across the neck to the other side, tracing a semi-circle. Showing off a necklace hanging around one’s neck. Newspaper The index and middle fingers of the V-hand (the index and middle fingers are spread apart and extended from an otherwise closed hand in the shape of a “V”), palm facing down and fingers pointing forward, starts at eye level. The hand then moves across the horizontal plan a few inches before moving down a few inches. The motion is repeated as the hand descends. Reading a newspaper. Nine The hand, palms facing out and fingers pointing up, is held in front of the upper chest. The hand starts as a spread- or 5-hand (the hand is flat with fingers spread apart and extended). After pausing for a moment, the hand changes into a spread- or 5-hand with its thumb tucked into the palm. Nine fingers or digits are held up; 5 plus 4 equals 9. One-Handed Simplified Signs 62 Ocean Spread- or 5-hand (hand is flat with fingers spread apart and extended), palm facing down and fingers pointing forward, is in front of the body. It then arcs up and down while moving forward. Waves rolling on the surface of an ocean or lake. Owl Pointing-hand (the index finger is extended from an otherwise closed hand), palm facing in and finger pointing up, traces a small circle around and in front of an eye. Indicates the large eye of an owl. Pain Fingers close and make a fist, which is then bumped into the area affected by the pain. A frown or pained facial expression is appropriate. (This sign can be made on the part of the body that hurts. Alternatively, one can make this sign and then point to the source of pain.) Being bumped causes pain. Paint The backs of the fingers of the bent-hand (the fingers are together and extended at a right angle with respect to the palm), palm and fingers pointing diagonally in and knuckles pointing down, brush forward along the forearm of the inactive arm. The bent-hand then flips open into a flathand, palm facing down and fingers pointing forward, and brushes down the stationary arm. The action may be repeated. Painting a surface with a paintbrush. Palm The flat-hand (the hand is flat with fingers together and extended), palm facing up and fingers pointing diagonally forward is extended in front of the body. Indicates the palm. Pancake The fist (the hand forms a fist), palm facing to the side and knuckles pointing down, starts in front of the body. The hand moves forward slightly, then arcs up and back towards the body. The sign can be repeated. Flipping or turning over a pancake. Parking The flat-hand (the hand is flat with fingers together and extended), palm facing down and fingers pointing to the side, initially is in front of and to the side of the body. It then moves about a foot to the other side until it is One-Handed Simplified Signs 63 in front of the body, turns so that the fingers point forward, moves forward about six inches, and comes to a stop. A car pulling into a parking space next to a wall. Penguin The arm is held straight down at the side of the body with a flat-hand (hand is flat with fingers together and extended), palm and fingers pointing diagonally down the side. Wiggling or shifting the body from side to side in imitation of a penguin’s shuffling movement is appropriate. (To indicate the meaning “Flippers,” flap the hands up and down slightly.) A penguin’s flippers. Piano The fingers of a spread curved-hand (the fingers are spread apart and curved), palm facing down and fingers pointing forward, wiggle as the hand moves from side to side in front of the body. Playing the piano. Poison The tip of the index finger of the pointing-hand (the index finger is extended from an otherwise closed hand), palm facing the body and finger pointing up, traces an X over the mouth. Shaking the head “No” and a frown or unhappy facial expression are appropriate. The crossbones of the poison symbol; something that should not be eaten or swallowed. Quarantine The pointing-hand (the index finger is extended from an otherwise closed hand), palm facing out to the side and finger pointing up, is fully extended to the side at shoulder level. The head is turned away from the pointinghand. A person in quarantine is separated from others. Rabbit The V-hand (the index and middle fingers are spread apart and extended from an otherwise closed hand in the shape of a “V”), palm facing forward and fingers pointing up, initially is chest level and close to the body. The hand then arcs forward several times. A rabbit hopping forward. Rectangle The edge of the index fingers of the pointing-hand (the index finger is extended from an otherwise closed hands), palm facing down and fingers One-Handed Simplified Signs 64 pointing forward, trace the outline of a rectangle vertically in front of the body. Indicates the general shape of a rectangle. Reflex The knuckles of the fist (the hand forms a fist), palm facing up and knuckles pointing to the side, swing down to strike the knee. The knee then moves up slightly in response. A doctor tests a patient’s reflexes by tapping the nerves by the knee. A reflex is an involuntary movement in response to a stimulus. Rice The tips of the index and middle fingers of the H-hand (the index and middle fingers are together and extended from an otherwise closed hand), palm and fingers pointing down and knuckles pointing diagonally forward, initially touch the forearm of the inactive arm. The H-hand then rotates so that the palm and fingers point up and the tips of the index and middle fingers touch the face just below or on the lower lip. The action is repeated. An open mouth is appropriate. Eating rice with chopsticks. Ring The pointing-hand (the index finger is extended from an otherwise closed hand), palm facing in and finger pointing to the side, touches the base of the ring finger of the hand of the inactive arm. Indicates the placement of a diamond wedding ring. River The pointing-hand (the index finger is extended from an otherwise closed hand), palm facing down and finger pointing forward, initially is in front of the body. It then arcs up and down slightly while moving forward a short distance. Water flowing in a stream. Rupture The tips of the fingers and thumb of the tapered- or O-hand (the fingers are together and curved, with the finger tips touching the thumb tip), palm facing across the body and knuckles pointing forward, initially is in front of the body. The hand then moves to the side as it opens into a spread- or 5-hand (the hand is flat with fingers spread apart and extended), palms facing across the body and fingers pointing forward. (The larger the rupture or explosion, the further away the hand should move.) Opening one’s mouth or puffing out one’s cheeks as the hand moves to the side is appropriate. One-Handed Simplified Signs 65 Something that was held together ruptures or bursts apart. Safe (on base) Flat-hand (hand is flat with fingers together and extended), palm facing down and fingers pointing diagonally forward, initially is in front of the waist. The hand then sweeps quickly across the body. An umpire calling a baseball player “safe” on base or at home plate. Shampoo The tips of the fingers and thumb of a spread curved-hand (the fingers are spread apart and curved), palm facing in towards the head and fingers pointing up, rub the sides of the head. Washing one’s hair with shampoo. Sick The flat-hand (the hand is flat with fingers together and extended), palm facing in and fingers pointing to the side, is held on the forehead. After a pause, the hand, palm facing in and fingers pointing to the opposite side, is held on the stomach. A frown or unhappy facial expression is appropriate. The head and stomach hurt or do not feel well. Sky The spread- or 5-hand (the hand is flat with fingers spread apart and extended), palm facing forward and fingers pointing straight up, starts raised above and to the side of the head. The hand then arcs from one side to the other. The signer should gaze up. Indicates the sky; reaching up to touch the sky. Slap The active flat-hand (the hand is flat with fingers together and extended), palm facing down and fingers pointing to the side, slaps the back of the stationary flat-hand, where it rests at the side of the body. A pained facial expression or mouthing the word “Ow” is appropriate. A slap is painful. Slide The flat-hand (the hand is flat with fingers together and extended), palm facing down and fingers pointing diagonally forward and down, initially is at shoulder level, close to the body. The hand then arcs down and forward. Sliding down a slide on a playground. One-Handed Simplified Signs 66 Smile The tip of the index finger of the pointing-hand (the index finger is extended from an otherwise closed hand), palm facing in and finger pointing diagonally up across the body, initially touches the center of the lower lip. It then arcs to the sides of the mouth and up to the cheek. A smile or happy facial expression is appropriate. Drawing the lips into a smile. Stand The tips of the index and middle fingers of the V-hand (the index and middle fingers are spread apart and extended from an otherwise closed hand in the shape of a “V”), palm and fingers pointing down and knuckles pointing diagonally forward, rests in the space in front of the body. A person standing on her legs. Stare V-hand (the index and middle finger are spread apart and extended from an otherwise closed hand in the shape of a “V”), palm down and fingers pointing forward, initially is at the side of the head at eye level. The hand then moves forward a short distance. Interlocking eyes. Stretch The fist (the hand forms a fist), palm facing to the side and knuckles pointing to the front, is formed in front of the body. The arm then extends upward above the head and the hand turns into a spread- or 5-hand (the hand is flat with fingers spread apart and extended), palm facing out and fingers pointing up. Stretching the body after resting. Sweetheart The flat-hand (the hand is flat with fingers together and extended), palm facing in and fingers pointing diagonally up to the side, is placed on the chest over the heart. A smile or happy facial expression is appropriate. Holding a loved one or someone dear in one’s heart. Swim The curved-hand (the fingers and thumb are together and curved), palm facing down and fingers pointing forward, initially is to the side of the body. The hand then extends upward and forward in vertical arcs. Swimming. One-Handed Simplified Signs 67 Swollen Glands The fist (hand forms a fist), palm facing in towards the body and knuckles pointing up, is placed on the side of the upper neck. After a moment’s pause, the fist moves to the other side of the neck. A frown or sickly facial expression is appropriate. The fist represents the swollen glands characteristic of certain diseases. Table The edge of the index fingers and thumbs of a flat-hand (hand is flat with fingers together and extended), starts with the hand on the signer’s left, palm facing across the body. The hand then moves up several inches, and rotates so that the palm is facing down. The hand then moves across the body and then rotates again, so that the palm is facing leftward across the body. The hand then moves down several inches. Indicates the general shape of a tabletop. Tape The index and middle fingers of the H-hand (the index and middle fingers are together and extended from an otherwise closed hand), palm facing in and fingers pointing across the body, start to the left of the mouth and brush back across the lips. Taping someone’s mouth shut. Tea The base of the baby O-hand (the index finger and thumb are curved and touch at their tips from an otherwise closed hand), palm facing to the side and knuckles pointing forward, initially rests in the space in front of the body. The hand then arcs up to the side of the mouth, rotating so that the knuckles point up. Opening one’s mouth slightly is appropriate. Holding and taking a sip from a cup of tea. Tease The tip of the thumb of the spread- or 5-hand (hand is flat with fingers spread apart and extended), palm facing out and fingers pointing up, touch the ear as the hand flaps forward and back several times. Sticking out the tongue is appropriate. Teasing or making fun of someone. Time The tip of the index finger of the pointing-hand (the index finger is extended from an otherwise closed hand), palm facing down and finger pointing diagonally forward, touches the back of the wrist on the inactive arm. Pointing to one’s watch to indicate the time. One-Handed Simplified Signs 68 Trashcan The tip of the index finger of pointing-hand (the index finger is extended from otherwise closed hand), palm facing across the body and finger pointing down, starts at the side of the body at thigh level. The finger then draws a circle, suggesting the opening of the trashcan. Indicates the approximate size and shape of the upper part of a trashcan. Tree The fingers of the spread- or 5-hand (the hand is flat with fingers spread apart and extended), palm facing out and fingers pointing up, wiggle slightly, as the elbow extends forward from the body and rests in space. (To indicate more than one tree or the meanings “Forest” or “Nature,” make this sign and then move the arms a short distance to the side.) Indicates the trunk, branches, and leaves of a tree; a forest has many trees. Try Fist (hand forms a fist), palm facing out and knuckles pointing up, initially is held to the side of the head. The hand then gradually moves down until it is at chin level. Making a determined effort to complete a pull-up; pulling oneself up. Tumor The fist (the hand forms a fist), palm facing down and knuckles pointing to the side, is placed on the back of the inactive arm. Indicates a large growth or tumor. Turn Flat-hand (hand is flat with fingers together and extended), palms facing across the body and fingers pointing forward, initially are in front of the body. It then moves several inches straight forward and then makes a 90degree turn to one side. (To indicate the meaning “Turn Right,” one should turn the hands to the right. To indicate the meaning “Turn Left,” one should turn the hands to the left.) Making a turn. Turtle The fist (the hand forms a fist), palm facing to the side and knuckles pointing to the front, is formed in front of the body. The thumb of the fist, may wiggle slightly as the whole hand moves forward slowly. A turtle walking slowly. One-Handed Simplified Signs 69 Twist The fist (hand forms a fist), palm facing down and knuckles pointing forward, initially is in front of the body. The fist then arcs forward across the body, so that the knuckles face to the side. (To indicate the location of a sprain or cramp, make this sign and then point to the affected area of the body. To indicate the meaning “Spasm,” make this sign and then return the hand to the original position. The sign may be made quickly.) Twisting or wringing a cloth; the tightening of an area that occurs during a cramp. The tightening and loosening of an area that occurs during a spasm. Umbrella The tip of the index finger of the pointing-hand (the index finger is extended from otherwise closed hand), palm facing down at chest level, draws a “j” shape in the air. At the highest point, the hand rotates slightly so that the tip of the index finger is pointing up and the palm is facing out. Indicated the curved handle of an umbrella. Vacation The flat-hand (hand is flat with fingers together and extended), palm facing forward and fingers pointing to the side of the body, is located behind the lower part of the head as the head leans back slightly. A smile or happy facial expression is appropriate. Supporting the head while leaning back and relaxing on vacation. Vagina The index finger of the pointing-hand (the index finger is extended from an otherwise closed hand) outlines a triangle in front of the lower abdomen. Indicates the approximate shape of the vulva or the external area surrounding a woman’s vagina. Valley Flat-hand (each hand is flat with fingers together and extended), palm diagonally to the side, facing across the body, and fingers pointing forward, initially are at shoulder level. The hand then move diagonally down to waist level, as far as is comfortable, before the hand rotates slowly so that the palm is diagonally down but the fingers remain pointing forward. The hand then moves back up to shoulder level, completing the v- shaped path of the hand. Indicates the sides of a valley One-Handed Simplified Signs 70 Vary The edge of the index finger of the pointing-hand (the index finger is extended from otherwise closed hands), palm facing down and finger pointing forward, starts at chest level to the side of the body. The hand then moves up and down while also moving across the body. Lines on a graph vary in height. Video The partially closed C-hand (the fingers are together and curved, with the thumb opposite the fingers), palm and fingers facing forward, at elbow level. The hand then moves forward several inches. Taking a videocassette and inserting it into a VCR. Violin The fist (the hand forms a fist), palm facing down and knuckles pointing diagonally forward, arcs from side to side in space, at shoulder level to the side of the body. Head is titled to the side as if the chin is holding a violin. (To indicate the meaning “Practice Music,” repeat the action several times.) Playing a violin; practicing music. Wait The knuckles of the fist (hand forms a fist), palm facing back, rest on the side of the waist. The elbow is held out to the side of the body. (To indicate the meaning “Impatient,” make this sign with a frown or unhappy facial expression.) Impatiently waiting. War The tip of the index finger of the L-hand (the index finger and thumb are extended from an otherwise closed hand and forms a right angle), palm facing in and finger pointing across the body and thumb pointing up, are in front of the body. The finger then moves to point in several different directions (This sign can also be made to emphasize the action of war fighting by arcing the hand slightly, first to one side and then to the other. This arcing movement may be repeated several times.) A gun aimed at someone. Weak The tips of the fingers and thumb of the claw-hand (the fingers are spread apart and bent), palm facing down and fingers pointing diagonally forward, bend forward on the leg. A frown or fatigued facial expression is appropriate. One-Handed Simplified Signs 71 Knees buckling from weakness. World Curved-hand (the fingers and thumbs are together and curved), starts in front of the body at chest level. The palm is facing across the body and fingers are pointing forward. The hand then moves up and around in a circle. The fingers are always pointing forward but the direction of the palm rotates with the movement. Indicates the spherical shape of a globe.