KINESIOL 2G03 Lecture Notes - Lecture 14: Maternal Sensitivity, Twin Study, Twin
2 Apr 2016
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An addict struggles with cravings, loss of control of amount and frequency of use, compulsion to use despite consequences. Word is over used and freely used conversation. Maternal care grooming in rats program adults stress response: support environmental influence. Children adopted out of alcoholic families were still more likely to become alcoholics (ignores environmental in utero influences) Twin studies help differential between environmental and genetic factors: monozygotic 100% genes and environment, dizygotic 50% genes and 100% environment, twin probeandwise concordance. Probability that a cotwin would have history of alcoholism. Higher concordance with mz twins than dz twins. More likely to both be alcoholics mz strong genetics. Variables (time spent together) were controlled for. Consumed alcohol and self reported feelings of drunkenness. 10 years later 34% of alcoholics had family history, 13% did not have history. Those who responded with high feelings of drunkenness were less likely to become alcoholics conditioning. Response level determined by ability to metabolize alcohol.
