Nichel Bryant November 19, 2012 Experimental Psychology The twenty-fourth reading assignment introduces students to developmental psychology. Developmental psychology is the field that studies the ways in which thoughts, feelings, and behaviors development throughout the life-span. From the time children are born up until the time they move into their adult years, they are faced with many challenges. The main focus of developmental psychology is trying to understand some of the obstacles a person will come across throughout their life. Some challenges that children face are trying to grasp an understanding of reality and cultural beliefs as well. Scientists today believe that development occurs from conception continuing all the way to the latter part of life. This life-span developmental perspective of development moves away from the theory that scientists adopted for years which suggested development was complete in human beings by the time they reached their teenage years (See Sigmund Freud; Reading assignment 22B). Developmental psychology also focuses on the three issues that show a constant reoccurrence throughout all of developmental psychology and the extent to which they affect human growth. The nature-nurture controversy is a very significant issue in developmental psychology. For years scientists have been trying to figure out whether development is due to maturation that occurs biologically or an individual’s learning experience. How important the early experience is in human development is the second major issue that developmental psychology focuses. Looking at certain species of animals showed evidence for the importance of critical periods. It is not completely correct to say that humans have critical periods, but instead it is more accurate to say that humans have sensitive periods. In some areas, including language, the “window of opportunity” could be crucial but not critical. Take into account a child who was never exposed to language, this child would still be able speak, but may lack when it comes to the use of proper syntax. The third basic concern of developmental change deals with whether development occurs in stages. There is evidence that shows there are discrete steps in which all human beings somewhat progress in a similar sequence (See also Reading Assignment 24: Cognitive Development). The first process in human development is the prenatal period. Throughout this process, the growing fetus is susceptible to different teratogens. These teratogens might lead to abnormalities in the fetus or even death. Alcohol is one the most common teratogens that lead to fetal abnormality. The consequences of a mother who consumes alcohol during her pregnancy could be a child that is born with fetal alcohol syndrome, also known as FAS. Children born with FAS are susceptible to a number of defects that can range anywhere from mental abnormalities to physical deformities. The prenatal period is divided into three stages: the germinal period, the embryonic period, and the fetal period. The prenatal stages of development should not be confused with trimesters. Trimesters are the division of the weeks of pregnancy during which the mother’s body undergoes changes. Prenatal stages refer to the changes that are occurring with the unborn fetus. During the second trimester of pregnancy, the mother will experience bodily changes such as the expansion of her abdomen. During the second prenatal stage, bodily changes will be happening with the fetus such as the growth of organs. At birth, infants are born with many innate reflexes that will eventually disappear as the infant begins to grow and gain control over their movements and motor skills. When a parent is asked about their infant in terms of development, the stage the infant is in will usually be described by a motor milestone. As infants reach childhood, the growth for boys and girls is mostly equal until they reach the age of 10. At this time there are significant changes in psychological development and in the size and shape of the body. While these milestones are usually hit around the same time and as adolescence begins, boys and girls individually vary at the age they will hit puberty. Girls hitting puberty at an early age tend to be associated with negative outcomes like delinquency, while boys who hit puberty at an early age tend to be associated with positive ones like being more athletic. As men and women reach middle adulthood there are still developmental changes that are occurring. For women, menopause is seen to be the most dramatic change experienced in their adult life. While males do not undergo any reproductive changes, it said that men experience a male menopause where from their forties and beyond testosterone levels drop and sexual activity in turn declines. Menopause is not to be confused with the mid-life crisis, which is arguable, if one prescribes to this notion, psychological in nature and not necessarily predicted or caused by physical changes in or of the body. In early life most developmental changes were physical. As humans reach elderly age there are still some physical changes occurring, but there are more significant sensory changes. Elderly people tend to experience hearing loss and also experience presbycusis which can make things like hearing a telephone ringing more difficult. It is true that as humans get older there is deterioration in some parts of functioning, but that comes along with development. Universally, people have different perceptions of the elderly. Ageism can be positive or negative. Someone may have the notion that all elderly people are sweet while someone else may believe that all elderly people are unable to drive. Nichel Bryant November 19, 2012 Experimental Psychology Definitions Table 1Textbook Developmental psychology is the field that studies the way thought, feeling, and behavior develop throughout the life span. Wikipedia Developmental psychology is the scientific study of changes that occur in human beings over the course of their life span. About.com Developmental psychology is the study of human growth and development that occurs throughout the entire lifespan. 2.Texbook Critical periods are periods of special sensitivity to specific types of learning that shape the capacity for future development Wikipedia Preferred Preferred In developmental psychology, a critical period is a phase in the life span during which an organism has heightened sensitivity to exogenous stimuli that are compulsory for the development of a particular skill. Scholarpedia.org Critical Period is a period during the early life of an animal when some property develops rapidly, and is most susceptible to alteration by the environment. Preferred 3.Textbook Sensitive periods are developmental periods during which environmental input is especially important, but not absolutely required, for future development in a domain. Preferred Wikipedia Sensitive periods is a term coined by the Dutch geneticist Hugo de Vries and adopted by the Italian educator Maria Montessori to refer to important periods of childhood development. Preferred Fcs.uga.edu There are optimal times when certain areas of the brain are most ready to develop. Researchers refer to this time of readiness as a sensitive period in development. 4.Textbook Wikipedia The prenatal period is any time before birth. Prenatal or antenatal development is the process in which a human embryo or fetus (or foetus) gestates during pregnancy, from fertilization until birth. Preferred Wisegeek.com The term prenatal period refers to the time in pregnancy between conception and birth. Preferred 5.Textbook Teratogens are harmful environmental agents, such as drugs, radiation, and viruses, that cause maternal illness, which can produce fetal abnormalities or death. Preferred Wikipedia Teratology is the study of abnormalities of physiological development. Medterms.com Teratogen: Any agent that can disturb the development of an embryo or fetus. 6.Textbook The germinal period begins approximately after the first two weeks of conception, the fertilized egg becomes planted in the uterus. Wiki.answers.com The germinal period is the two week period after the sperm and the egg unite. 7.Textbook The embryonic period lasts from the beginning of the third week to about the eighth week of gestation. It is the most important period in the development of the central nervous system and of the organs. Wikipedia The embryonic period is the first eight weeks of development of the conceptus, beginning with fertilization. About.com The beginning of the third week after conception marks the start of the embryonic period, a time when the mass of cells becomes a distinct human being. 8.Textbook The fetal period begins from about nine weeks until birth. At this time muscular development is rapid. At 28 weeks, during the fetal period, the fetus is now capable of sustaining life on its own . Wikipedia The fetal period is the period of prenatal development that begins eight weeks after fertilization and ends at birth. The fetal period of prenatal development begins on the last day of the eighth week after fertilization and continues until birth. Surebaby.com 9. Textbook Puberty is the stage in which individuals become capable of reproduction Wikipedia Puberty is the process of physical changes by which a child's body matures into an adult body capable of sexual reproduction to enable fertilisation. Livestrong.com Puberty is the period of time when children rapidly change biologically, psychologically, socially and cognitively. 10.Textbook Wikipedia Menopause is the cessation of the menstrual cycle. Webmd.com Menopause is commonly used to describe any of the changes a woman experiences either just before or after she stops menstruating, marking the end of her reproductive period. 11.Textbook Presbycusis is the inability to hear higher frequency sound, that usually occur with aging. Wikipedia Presbycusis (also spelt presbyacusis, from Greek presbys Menopause literally means the "end of monthly cycles" (the end of monthly periods aka menstruation), from the Greek word pausis (cessation) and the root men- (month). Preferred Preferred Preferred Preferred Preferred Preferred Emedicine.com “elder” + akousis “hearing”[1]), or age-related hearing loss, is the cumulative effect of aging on hearing. The term presbycusis refers to sensorineural hearing impairment in elderly individuals 12.Textbook Ageism is a form of prejudice against old people comparable to racism and sexism Wikipedia Ageism, or age discrimination is stereotyping and discriminating against individuals or groups because of their age. discrimination against persons of a certain age group. Preferred Maturation refers to biologically based changes that follow an orderly sequence, each step setting the stage for the next step according to an age-related timetable. Maturation is the emergence of personal and behavioral Preferred Dictionary.com 13.Textbook Wikipedia characteristics through growth processes. Thefreedictionary.com maturation - (biology) the process of an individual organism growing organically; a purely biological unfolding of events involved in an organism changing gradually from a simple to a more complex level 14.Textbook The life-span developmental perspective is the perspective that considers both constancy and change as well as gains and losses in functioning that occur at different points over the entire human life cycle. Wikipedia Life-span development perspectives emphasise that development is not just the function of childhood , but that coping with the changing internal and social environment is a life long challenge requiring personal growth and change. Academicwritingtips.org Lifespan development can be said to be the process whose beginning is marked by birth and whose end is marked by death. 15. Wikipedia Development is the process of a human becoming biologically mature The lifecycle from conception to death. It focuses on change that is cumulative. There are many aspects that shape human development from biological, psychological and sociocultural factors. Development Preferred Preferred Read more: What is the definition of human development? | Answerbag http://www.answerbag.com/q_view/1866577#ixzz2Lf61Mfxn 16. Textbook The three issues that show a constant reoccurrence Preferred throughout all of developmental psychology are the roles of the nature-nurture controversy, how important the early experience of a child’s life is, and also the extent to which development occurs in “stages.” 17.thrivetofive.blogspot.com 18. 19. 20. 21. “The window of opportunity” is the time when the brain is particularly efficient at specific types of learning. These are critical periods where your child readily absorbs specific skills. These "window of opportunity" occur when the connections of the brain develops at the most rapid rate. Preferred Summary PsychologyOn Developmental Psychology Developmental Psychology Critical periods Critical Periods Sensitive periods Sensitive Periods Prenatal period Missing Teratogens Teratogens Germinal Period Germinal Period Embryonic Period Embryonic Period Fetal Period Fetal Period Puberty Puberty Menopause Menopause Presbycusis Prebycusis Ageism Ageism Maturation Maturation Life-span developmental perspective Missing three issues that show a constant reoccurrence throughout all of developmental psychology “window of opportunity” Missing Missing