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Myers 9 Chapter 5

Bell West / Developing through the Life Span

developmental psychology A branch of psychology that studies physical, cognitive, and social change throughtout the life span.
zygote The fertilized egg; it enters a 2-week period of rapid cell division and develops into an embryo.
embryo The developing human organism from about 2 weeks after fertilization through the second month.
fetus The developing human organism from 9 weeks after conception to birth.
teratogens Agents, such as chemicals and viruses, that can reach the embryo or fetus during prenatal development and cause harm.
fetal alcohol syndrome Physical and cognitive abnormalities in children caused by a pregnant woman's heavy drinking. In severe cases, symptoms include noticeable facial misproportions.
habituation Decreasing responsiveness with repeated stimulation. As infants gain familiarity with repeated exposure to a visual stimulus, their interest wanes and they look away sooner.
maturation Biological growth processes that enable orderly changes in behavior, relatively uninfluenced by experience.
cognition All the mental activities associated with thinking, knowing, remembering, and communicating.
schema A concept or framework that organizes and interprets information.
assimilation Interpreting our new experience in terms of our existing schemas.
accommodation Adapting our current understandings (schemas) to incorporate new information.
sensorimotor stage In Piaget's theory, the stage (from birth to about 2 years of age) during which infants know the world mostly in terms of their sensory impressions and motor activities.
object permanence The awareness that things continue to exist even when not perceived.
preoperational stage In Piagate's theory, the stage (from about 2 to 6 or 7 years of age) during which a child learns to use language but does not yet comprehend the mental operations of concrete logic.
conservation The principle (which Piaget believed to be a part of concrete operational reasoning) that properties such as mass, volume, and number remain the same despite changes in the forms of objects.
egocentrism In Piaget's theory, the preoperational child's difficulty taking another's point of view.
theory of mind People's ideas about their own and others' mental states-about their feelings, perceptions, and thoughts, and the behaviors these might predict.
concrete operational stage In Piaget's theory, the stage of cognitive development (from about 6 or 7 to 11 years of age) during which children gain the mental operations that enable them to think logically about concrete events.
formal operational stage In piaget's theory, the stage of cognitive developing (normally beginning about age 12) during which people begin to think logically about abstract concepts.
autism A disorder that appears in childhood and is marked by deficient communication, social interaction, and understanding of others' state of mind.
stranger anxiety The fear of strangers that infants commonly display, beginning by about 8 months of age.
attachment An emotional tie with another person; shown in young children by their seeking closeness to the careegiver and showing distress on separation.
critical period An optimal period shortly after birth when an organism's exposure to certain stimuli or experiences produces proper development.
imprinting The process by which certain animals form attachments during a critical period very early in life.
basic trust According to Erik Erikson a sense that the world is predictable and trustworthy; said to be formed during infancy by appropriate experiences with responsive caregivers.
self-concept Our understanding and evaluation of who we are.
adolescence The transition period from childhood to adulthood, extending from puberty to independence.
puberty The period of sexual maturation, during which a person becomes capable of reproducing.
primary sex characteristics The body structures (ovaries, testes, and external genitalia) that make sexual reproduction possible.
secondary sex characteristics Nonreproductive sexual characteristics, such as female breasts and hips, male voice quality, and body hair.
menarche The first menstrual period.
identity Our sense of self; according to Erikson, the adolescent's task is to solidify a sense of self by testing and integrating various roles.
social identity The "we" aspect of our self-concept; the part of our answer to "Who am I/" that comes from our group memberships.
intimacy In erikson's theory, the ability to form close, loving relationships; a primary developmental task in late adolescence and early adulthood.
emerging adulthood For some people in modern cultures, a period from the late teens to early twenties, bridging the gap between adolescent dependence and responsible adulthood.
menopause the time of natural cessation of menstruation; also refers to the biological changes a woman experiences as her ability to reproduce declines.
cross-sectional study A study in which people of different ages are compared with one another.
longitudinal study Research in which the same people are restudied and retested over a long period.
crystallized intelligence Our accumulated knowledge and verbal skills; tends to increase with age.
social clock The culturally preferred timing of social events such as marriage, parenthood, and retirement.
fluid intelligence Our ability to reason speedily and abstractly; tends to decrease during late adulthood.
Created by: rkratina