Lecture_12_-_Infant_and_Childhood_Develo.doc - Psych 100...

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© 2014 Wede Psych 100 – Lecture 12 Fall ‘14 - Wede Lecture 12 – Prenatal, Infancy and Childhood Development Prenatal Development ________________________ A single sperm cell (male) penetrates the outer coating of the egg (female) and fuse to form one fertilized cell. ______________________________________ twins Infants will be same sex, have identical features and possess same set of 46 chromosomes ______________________________________ twins A woman’s body is only supposed to release an egg once each monthly cycle. Sometimes, more are released. Prenatal development Start as one cell, than 2…4….8…..16 Within 1 week Cells start to differentiate Fetus receives nutrients from mother through placenta ____________________ Any substance that can reach the embryo or fetus and cause harm Fetal alcohol syndrome (FAS) Small, misproportioned head Lifelong brain abnormalities Leading cause of mental retardation If alcoholic, and drink during pregnancy, 4 in 10 chance baby will have FAS The Competent Newborn _________________ Decreasing responsiveness with repeated stimulation Focus on faces first Can discriminate between shapes and colors Even have
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