psych 9-27 - September 27, 2007 Gen. Psych. 101 Where do we...

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September 27, 2007 Gen. Psych. 101 Where do we come from? -conception: sperm meets egg -prenatal development: -sperm + egg = zygote -zygote becomes embryo at 2 weeks -embryo becomes fetus at 9 weeks -full term baby born at 40 weeks -at each stage, genetic and environmental factors affect development -teratogens -mother’s psychological state -cool (adaptive) things about newborns: -rooting reflex -turn head toward human voices -prefer to look at objects 8-12 inches away -babies recognize smell of own mother -babies prefer voice of own mother -1978: first test tube baby (in vitro fertilization) -technique in which egg cells are fertilized outside of womb -in vitro = latin for glass -one type of assisted reproduction -early reactions: frightened, religious controversy, concerned that babies would have more birth defects -upshots -biological children for infertile couples -what are some other societal implications? -sperm banks
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psych 9-27 - September 27, 2007 Gen. Psych. 101 Where do we...

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