Module 22 - THE REMARKABLE NEWBORN • Habituation o The...

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Module 22 PRENATAL DEVELOPMENT Zygote o A remarkable cell that is very small yet has the complete capabilities of reproduction Embryo o When the zygote is firmly attached to the uterine wall o All parts of the body begin to form Fetus o The developing human organism, from nine weeks after conception to birth Teratogens o Toxic substances that can harm the embryo or fetus during prenatal development Fetal Alcohol Syndrome (FAS) o A specific pattern of birth defects (stunted growth, facial deformity, and mental retardation) often found in the offspring of alcoholic mothers
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Unformatted text preview: THE REMARKABLE NEWBORN • Habituation o The tendency for attention to a novel stimulus to wane over time • Recovery o Following habituation to one stimulus, the tendency for a second stimulus to arouse new interest (often used to test whether infants can discriminate between stimuli) • Grasping reflex o In infants, an automatic tendency to grasp an object that stimulates the palm • Rooting reflex o In response to contact on the cheek, an infant’s tendency to turn toward the stimulus and open its mouth...
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