PSYC 1 Lecture Notes - Lecture 25: Chromosome, Frontal Lobe, Explanatory Style
15 Sep 2020
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Document Summary
Classical conditioning research helps explain how panic-prone people associate anxiety with certain cues. Stimulus generalization research demonstrates how a fearful event can later become a fear of similar events. Reinforcement (operant conditioning) can help maintain a developed and generalized phobia. Observing others can contribute to development of some fears. Olsson and colleagues: wild monkey research findings. Genes: genetic predisposition to anxiety, ocd, and ptsd. The brain: trauma linked to new fear pathways, hyperactive danger detection, impulse control and habitual behavior areas of brain. Natural selection: biological preparedness to fear threats-easily conditioned and difficult to extinguish. Findings that any theory of depression must explain. Women"s risk of major depression is nearly double men"s. Most major depressive episodes end on their own. Stressful events related to work, marriage, and close relationships often precede depression. With each new generation, depression is striking earlier in life and affecting more people. Twin studies data estimated heritability of major depression at 37 percent.
