PSY 1102 - Chapter 4

PSY 1102 - Chapter 4 - child is still egocentr ic and...

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Unformatted text preview: child is still egocentr ic and incapable of appreciating simple logic, such as the reversibility of operations. A pret een in th Chapter 4: The Developing Person The first in-vitro fertilization 1978 Developmental psychologists: study physical, mental (cognitive), and social changes throughout the human life. 1. Nature/Nurture o How much do genetic inheritance (nature) and experience (nurture) influence our development? 2. Continuity/Stages o Is development a gradual, continuous process (escalator) or does it proceed thru a sequence of separate stages (rungs on a ladder) 3. Stability/Change o Do our early personality traits persist thru life, or do we become different persons as we age. PRENATAL DEVELOP MENT AND T HE NEWBORN Conception Women are born with all the immature eggs they will ever have Men begin producing sperm cells at puberty Egg is bigger than sperm 1. Sperm eats away at protective coating penetrating the egg. 2. Egg takes in that one sperm...after half a day they fuse to form a zygote. Prenatal Development (Genetic and Environmental) Zygote (conception 2 weeks): the fertilized egg Placenta: formed when the zygotes outer part attaches to the uterine wall, through which nutrients and oxygen pass. (zygotes inner part = embryo) Embryo (Week 2 - 8): the developing human organism. Cell differentiation: when the cells of a zygote begin to specialize in structure and function forming the embryo. Heart begins to beat Liver begins to make red blood cells Fetus (Week 9 birth): developing human organism from 9 weeks after conception to birth. - responsive to sound and organs are developed and fully functional by 6 months.- 33-37 weeks: have preferred sounds of their mothers voice (shown by decreased HR) Teratogens: agents (chemicals and viruses) that can reach the embryo or fetus during prenatal development (through the placenta) and cause harm. Fetal alcohol syndrome (FAS): physical and cognitive abnormalities in children caused by a pregnant womans heavy drinking. o Causes facial misproportions o Leading cause of mental retardation o 4 in 10 alcoholic mothers have babies with FAS Smoking during pregnancy: causes reduced blood oxygen , decreased nutrients and puts baby at risk for being born underweight . The Competent Newborn Born with reflexes that allow us to survive. Rooting reflex : a babys tendency to open the mouth and search for the nipple when touched on the cheek.- Newborns quickly learn their mothers smell- Gaze longer at a face-like images (Gaze longer at a face than a body)- Prefer contrasting images Research Strategies for Understanding I nfants Thinking Researchers use behaviour to understand infants thinking 1. How to ask infants what they see and what they remember Habituation : a decrease in responding (look less at) with repeated stimulation....
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PSY 1102 - Chapter 4 - child is still egocentr ic and...

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