PSYCO105 Chapter Notes - Chapter 4, 5: Preterm Birth, Umbilical Cord, Fetal Alcohol Spectrum Disorder
26 Sep 2016
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24 weeks eyes open an 28 week the fetus=age of viability likely to survive outside the womb incase of premature birth. Y chromosome contains tdf( testis determination factor gene) that triggers de- velopment. 6-8 weeks the tdf gene initiates the development of testes. 2 the testes secrete sex hormones called androgens that continue to direct male pattern of organ development. Newborn sensation and perception infants are nearsighted, 20/800, 40 times worse than normal adult acuity of 20/20 preferential looking procedures study infants visual preferences. Robert frantz used this to study infants visual preferences study found infants preferred complex patterns such as realistic or scrambled draw- ings of human face to simple patterns and solid colours. 3 newborns readily turn toward off-centerer auditory (rattles or voiceds sounded oppo- site one ear) and tactile (touching the wheel) targets and odours newborns orient to significant stimuli in their environs t.
