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Development Through the Life Span Vocab

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Vocab Word
Definition
Developmental Psychology   a branch of psychology that studies physical, cognitive, and social changes throughout the life span  
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Zygote   the fertilized egg; it enters a two week period of rapid cell division and develops into an embryo  
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Embryo   the developing human organism from about two weeks after fertilization through the second month  
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Fetus   the developing human organism from nine weeks after conception to birth  
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Teratogen   agents, such as chemicals and viruses, that can reach the embryo or fetus during prenatal development and cause harm  
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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  
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Rooting Reflex   a baby's tendency, when touched on the cheek, to turn towards the touch, open the mouth, and search for the nipple  
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Hibituation   decreasing responsiveness with repeated stimulation. As infants gain familiarity with repeated exposure to a visual stimulus, their interest wanes and they look away sooner  
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Maturation   biological growth processes that enables orderly changes in behavior, relatively uninfluenced by experiments  
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Schema   a concept or framework that organizes and interprets information  
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Assimilation   interpreting one's new experience in terms of one's existing schemas  
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Accomodation   adapting one's current understandings (schemas) to incorporate new information  
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Cognition   all the mental activities associated with thinking, knowing, remembering, and communicating  
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Sensorimotor Stage   in Piaget's theory, the stage (from birth to about two years of age) during which infants know the world mostly in terms of their sensory impressions and motor activities  
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Object Permanence   the awareness that things continue to exist even when not percieved  
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Preoperational Stage   in Piaget'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  
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Conservation   the principle (which Piaget believed to be part of concrete operational reasoning) that properties such as mass, volume, and number remain the same despite changes in the forms of objects  
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Egocentrism   the Piaget's theory, the preoperational child's difficulty taking other's points of view  
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Theory of Mind   people's ideas about their own and others' mental states- about their feelings, perceptions, and thoughts and the behaviors these may predict  
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Autism   a disorder that appears in childhood and is marked by deficient communication, social interaction, and understanding of others' states of mind  
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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 enables them to think logically about concrete events  
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Formal Operational Stage   in Piaget's theory, the stage of cognitive development (normally beginning about age 12) during which people begin to think logically about abstract concepts  
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Stranger Anxiety   the fear of strangers that infants commonly display, beginning by about 8 months of age  
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Attatchment   an emotional tie with another person; shown in young children by their seeking closeness to the caregiver and showing distress on seperation  
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Critical Period   an optimal period shortly after birth when an organism's exposure to certain stimuli or experiences produces proper development  
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Imprinting   the process by which certain animals form attatchments during a critical period very early in life  
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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  
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Self-Concept   a sense of one's identity and personal worth  
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Adolescence   the transition period from childhood to adulthood, extending from puberty to independance  
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Puberty   the period of sexual maturation, during which a person becomes capable of reproducing  
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Primary Sex Characteristics   the body structures (ovaries, testes, and external genetalia) that make sexual reproduction possible  
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Secondary Sex Characteristics   nonreproductive sexual chacteristics, such as female breasts and hips or male voice quality and body hair  
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Menarche   the first menstral period  
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Identity   one's sense of self; according to Erikson, the adolescent's task is to solify a sense of self by testing and integrating various roles  
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Intimacy   in Erikson's theory, the ability to form close, loving relationships, a primary developmental task in late adolescence and early childhood  
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Menopause   the time of natural cessation of menstruation; also refers to the biological changes a woman experiences as her ability to reproduce declines  
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Alzheimer's Disease   a progressive and irreverable brain disorder characterized by gradual deterioration of memory, reasoning, language, and, finally, physical functioning  
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Cross-Sectional Study   a study in which people of different ages are compared with one another  
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Longitudinal Study   research in which the same people are restudied and retested over a long period  
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Crystallized Intelligence   one's accumulated knowledge and verbal skills; tends to increase with age  
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Fluid Intelligence   one's ability to reason speedily and abstractly; tends to decrease during late adulthood  
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Social Clock   the culturally preferred timing of social events such as marriage, parenthood, and retirement  
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