Exam 2 Study Guide Chapter 5 Understand the modal model of memory and Baddeley’s Working Memory model. Modal model of memory assumes that information is received, processed and stored differently for each kind of memory. Where unattended information presented very quickly is stored only briefly. Baddeley's Working Memory Model Working memory is thought to be involved in translating visual information into an acoustic code, forming chunks, rehearsing to keep attention focused on material to remember as the, e.g phone number example and sometimes elaborating on incoming information by calling up relevant knowledge from LTM. Thus the term working memory conveys more than a temporary storehouse, rather it connotes a place where the person exerts active mental effort to attend to and often to transform the material. Familiar task requires less WM capacity compare to unfamiliar task. Understand the primacy and recency effect. The serial position effect means that people were able to recall more words from the begging and the end of the free recall task. Primacy effect means that people did better on their free recall task at the begging of the list. Recency effect means that people did better on their free recall task at the end of the list. Rehearsal is though to help the items enter LTM, storage, Murdocks study found that, even though the participants were continually distracted while trying to rehearse the words, the primacy effect decrease but the recency effect stays intact. The explanation to this is that participants were still able to see the last few words on the list using either sensory memory or short term memory. Understand iconic and echoic memory. Iconic memory is similar to echoic memory but for the sense of sight instead of sound. They are very similar, but the main difference is in their duration. Echoic memory stores auditory stimuli for several seconds, and iconic memory stores visual stimuli for a few hundred milliseconds . Chapter 6 Understand mnemonic devices and examples. Mnemonic devices — like acronyms, chunking, and rhymes — work by tapping into how the brain naturally stores data. A mnemonic, also known as a memory aid, is a tool that helps you remember an idea or phrase with a pattern of letters, numbers, or relatable associations. Mnemonic devices include special rhymes and poems, acronyms, images, songs, outlines, and other tools. Mnemonic (pronounced ni-mon-ik) is derived from the Greek phrase mimnēskesthai meaning to “remember.” For instance: HOMES is an acronym for the five Great Lakes: Huron Ontario Michigan Erie Superior “pace” from the items’ first letters and thinking “pace” as you walk through the grocery store may help you remember all the items you need: pasta apples cilantro eggs IN music you use EGBDF Every good boy does fine Be able to identify and define each long-term memory system. Procedural Memory. Procedural memory is a part of the implicit long-term memory responsible for knowing how to do things, i.e., memory of motor skills. ... It does not involve conscious (i.e., it’s unconscious-automatic) thought and is not declarative. For example, procedural memory would involve knowledge of how to ride a bicycle. Semantic Memory. Semantic memory is a part of the explicit long-term memory responsible for storing information about the world. This includes knowledge about the meaning of words, as well as general knowledge. For example, London is the capital of England. It involves conscious thought and is declarative. The knowledge that we hold in semantic memory focuses on “knowing that” something is the case (i.e. declarative). For example, we might have a semantic memory for knowing that Paris is the capital of France. Episodic Memory. is a part of the explicit long-term memory responsible for storing information about events (i.e. episodes) that we have experienced in our lives. It involves conscious thought and is declarative. An example would be a memory of our 1st day at school. The knowledge that we hold in episodic memory focuses on “knowing that” something is the case (i.e. declarative). For example, we might have an episodic memory of knowing that we caught the bus to college today. Procedural knowledge involves “knowing how” to do things. It included skills, such as “knowing how” to playing the piano, ride a bike; tie your shoes, and other motor skills. It does not involve conscious thought (i.e. it’s unconscious – automatic). For example, we brush our teeth with little or no awareness of the skills involved. Declarative knowledge involves “knowing that”, for example London is the capital of England, zebras are animals, your mum’s birthday etc. Recalling information from declarative memory involves some degree of conscious effort – information is consciously brought to mind and “declared”. Evidence for the distinction between declarative and procedural memory has come from research on patients with amnesia. Typically, amnesic patients have great difficulty retaining episodic and semantic information following the onset of amnesia. Their memory for events and knowledge acquired before the onset of the condition tends to remain intact, but they can’t store new episodic or semantic memories. In other words, it appears that their ability to retain declarative information is impaired. However, their procedural memory appears to be largely unaffected. They can recall skills they have already learned (e.g. riding a bike) and acquire new skills (e.g. learning to drive). Understand the levels of processing theory. Shallow Processing – This takes two forms 1 . Structural processing (appearance) which is when we encode only the physical qualities of something. E.g. the typeface of a word or how the letters look. 2 . Phonemic processing – which is when we encode its sound. Shallow processing only involves maintenance rehearsal (repetition to help us hold something in the STM) and leads to fairly short-term retention of information. This is the only type of rehearsal to take place within the multi-store model. Deep Processing – This takes two forms 3 . Semantic processing, which happens when we encode the meaning of a word and relate it to similar words with similar meaning. Deep processing involves elaboration rehearsal which involves a more meaningful analysis (e.g. images, thinking, associations etc.) of information and leads to better recall. For example, giving words a meaning or linking them with previous knowledge. Chapter 7 Understand eyewitness testimony and false memory. Eyewitness testimony is a legal term that refers to an account given by people of an event they have witnessed. For example, they may be required to describe a trial of a robbery or a road accident someone has seen. This includes the identification of perpetrators, details of the crime scene, etc. Eyewitness testimony is an important area of research in cognitive psychology and human memory. Juries tend to pay close attention to eyewitness testimony and generally find it a reliable source of information. However, research into this area has found that eyewitness testimony can be affected by many psychological factors: Anxiety / Stress Reconstructive Memory Weapon Focus Leading Questions The legitimacy of repressed memories continues to be debated by contemporary psychologists, many of whom argue that such memories may be implanted by suggestive techniques, e.g., hypnosis and guided recall. Some therapeutic techniques seem especially likely to foster false memories. BUT it would be a mistake to dismiss all adult reports of early abuse. One of the biggest debates in cognitive psychology in recent years concerns whether victims of abuse repress memories of their trauma and later retrieve those recovered memories under therapy or whether instead some therapists inadvertently prompt their clients to create false memories of events that never actually happened. 1. Popular self-help books can encourage readers to look for symptoms of repressed memories of abuse, but these symptoms are also common for people who have not been abused. 2. Such books also suggest techniques for recovering repressed memories, such as using old family photographs and giving the imagination free rein. Ignoring evidence (confirmation bias): In the criminal justice system, one of the most powerful forms of evidence is the eyewitness account. Wells and his colleagues studied 40 cases in which DNA evidence indicated that a person had been falsely convicted of a crime. They found that in 36 of these cases the person had been misidentified by at least one eyewitness. One major problem with eyewitness testimony is that people tend to remember evidence that confirms their beliefs. Confirmation biases might even affect what potential eyewitnesses notice in the world around them. One major problem with eyewitness testimony is that people tend to remember evidence that confirms their beliefs. Confirmation biases might even affect what potential eyewitnesses notice in the world around them. Elizabeth Loftus and others have extensively studied eyewitness memory, a 22 type of autobiographical memory with grave implications for our court system. 1. Loftus’s studies suggest that eyewitness memory is easily distorted by the use of misleading questions. 2. For example, a misleading question about a barn (that did not exist) caused 17% of participants to later describe the barn in their recollection of a filmed accident. False memory is a psychological phenomenon whereby an individual recalls either an actual occurrence substantially differently from the way it transpired, or an event that never even happened. Interference, leading questions, obsessive-compulsive disorder, false memory syndrome and sleep deprivation can cause false memories. Pioneered by the work of Sigmund Freud and Pierre Janet, research on false memory has immensely benefitted from the contributions of the American cognitive psychologist, Elizabeth F. Lotus. False memory has manifold real-world implications ranging from false convictions in court proceedings to accidental manslaughter. False memory is a psychological phenomenon whereby an individual recalls an event that never happened, or an actual occurrence substantially differently from the way it transpired. In other words, a false memory could either be an entirely imaginary fabrication, or a distorted recollection of an actual event. Moreover, false memories are distinct from simple errors in recollection. Firstly, an individual who holds a false memory maintains some certitude in the veracity of the memory. Secondly, a false memory deals not with forgetting something that actually happened, but with remembering what had never taken place. Instances of this phenomenon may range from the mundane—such as remembering that you ate breakfast when you actually did not, to the serious—such as falsely recalling that you were assaulted by your boss. Examples of False Memory Following are some examples of false memory: Believing that you had called a friend in the morning, when in actuality, you had not. Falsely recalling that you had submitted an assignment for a class, only to find out later that you had not. Incorrectly remembering that you locked your car when before leaving the parking lot. Memories can be distorted, or even implanted, by false information. Imagining an event might lead to confusion of the mental image with a real memory. Children are particularly susceptible to false memories being induced. Understand flashbulb memories and how confidence might affect memory errors. A flashbulb memory is a highly vivid and detailed ‘snapshot’ of a moment in which a consequential, surprising and emotionally arousing piece of news was learned. Roger Brown and James Kulik introduced the term ‘flashbulb memory’ in 1977 in their study of individuals’ ability to recall consequential and surprising events. Debate centers on whether they are a special case (resistant to forgetting over time), or the same as other memories. The photographic model, the comprehensive model and the emotional-integrative model are some models which have been employed to study the phenomenon of flashbulb memory. The vividness and accuracy of flashbulb memories can vary across age and culture. The amygdala seems to play a key role in the formation and retrieval of flashbulb memories. Relatively little evidence for flashbulb memories as a distinct memory process. They ‘feel’ accurate (we are confident in recall) but are just as prone to forgetting & change as other episodic memories. A flashbulb memory is an accurate and exceptionally vivid long-lasting memory for the circumstances surrounding learning about a dramatic event. Flashbulb Memories are memories that are affected by our emotional state. The analogy of a flashbulb describes the way we can often remember where you where, what you were doing, how you were informed, and how you reacted, as if the whole scene had been “illuminated” by a flashbulb. Roger Brown and James Kulik coined the term ‘flashbulb memory’ in 1977. While the term ‘flashbulb memory’ implies shock, illumination, brevity and detail, a memory of this type is far from complete. Moreover, the fundamental characteristics of a flashbulb memory are informant (who broke the news), own affect (how they felt), aftermath (importance of the event), other affect (how others felt), ongoing activity (what they were doing) and place (where they where when the event happened). Examples of Flashbulb Memory Flashbulb memories are often associated with important historical or autobiographical events. Typical ‘flashbulb’ events are dramatic, unexpected, shocking. An example of a flashbulb memory is the assassination of the US president John F. Kennedy in 1963 and recalling the moment you learned of the death of Princess Diana in 1997. Recalling where you were when you learned about the fall of the Berlin Wall in 1989. Remembering the moment when you heard that Mr. Trump had won the 2016 Presidential election. Chapter 8 Understand subordinate-, basic-, and superordinate-level concepts. a high-level category that subsumes a number of basic-level categories. For example, animal is a superordinate category including the basic-level categories cat, fish, elephant, and so on. A superordinate category is usually characterized by (a) low levels of resemblance between members and (b) fundamental differences between its members and those of other categories (e.g., an elephant is not much like a fish, but both are very different from a tree). Understand the classical view of concepts and the problems that exist with this view. The classical theory of concepts is one of the five primary theories of concepts, the other four being prototype or exemplar theories, atomistic theories, theory-theories, and neoclassical theories. The classical theory implies that every complex concept has a classical analysis, where a classical analysis of a concept is a proposition giving metaphysically necessary and jointly sufficient conditions for being in the extension across possible worlds for that concept. That is, a classical analysis for a complex concept C gives a set of individually necessary conditions for being a C (or conditions that must be satisfied in order to be a C) that together are sufficient for being a C (or are such that something’s satisfying every member of that set of necessary conditions entails its being a C). The classical view also goes by the name of “the definitional view of concepts,” or “definitionism,” where a definition of a concept is given in terms of necessary and jointly sufficient conditions. This article provides information on the classical theory of concepts as present in the historical tradition, on concepts construed most generally, on the nature of classical conceptual analysis, and on the most significant of the objections raised against the classical view. Understand scripts. Script: a schema for a routine event, such as going to the dentist, or eating at a restaurant Allows us to make inferences about facts not stated Central concepts to a script are better remembered than concepts of less importance to the script Schemas and scripts allow us to make inferences about omitted information in stories. The “price” of using scripts, however, is that script-related information may intrude into our memory, such as in Bartlett’s “The War of the Ghosts” research. The schemata/scripts approach, like the prototype and exemplar views, has been criticized for not being empirically testable