CAS PS 241 Lecture Notes - Lecture 9: Neural Pathway, Extraocular Muscles, Operant Conditioning
18 Oct 2016
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Document Summary
Sense of taste is well developed at birth. Infant tastes amniotic fluid, which contains all the basic flavors. In a single-stimulus method, facial expressions tell us that newborns can differentiate between sweet, sour, and bitter tastes. Fetus breaths in and out amniotic fluid, so they can recognize many smells. Newborn has pleasant expression for smell of fruit, disgusted for rotten fish. Fetal movement in response to sound will start at 24-28 weeks. As sensitive to most sounds as adults are, quiet sounds are the exception. Prefer mom"s voice over strangers at birth because they are very used to mom"s voice in the womb. Dad preference comes at a few weeks old because they are initially not as familiar with it. At one month old, an infant can discriminate a p and b sound. Newborns demonstrate memory skills in regard to familiar recordings. Infants can learn by operant conditioning as newborns. Will suck harder to hear mom over a stranger.
