PSY 2105 Lecture Notes - Lecture 5: Prenatal Nutrition, Nutrition And Pregnancy, Preterm Birth
23 Nov 2016
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Document Summary
Agents that cause abnormal development in the fetus. Teratogens can have a physical effect or psychological effect. Ex: drugs, tobacco, alcohol, radiation, pollution, maternal diseases, poor nutrition. Factors that affect harm from teratogens: dose, heredity, other negative influences, age at time of exposure (fetus not mom) Street drugs: born addicted and are lively to have developmental problems. Caffeine: risk associated with caffeine, greater chance of miscarry in 1st trimester. Nicotine: can affect growth, increase risk of premature delivery. Alcohol: can lead to fetal alcohol syndrome. Environmental hazards: mecury, lead, and pcbs are harmful chemicals to the fetus. Maternal infectious diseases: can damage the cns, cause brain abnormalities and blindness, and produce facial abnormalities. Nutrition: poor prenatal nutrition results in unfavourable development, low brain weight, and higher rates of spontaneous abortion. Stress: prenatal anxiety and stress experienced by expectant moms has been correlated with later behavioral problems and cognitive deficiencies in infants/children.
