PSY100H1 Chapter Notes - Chapter 13: Operant Conditioning, Collectivism, Michael Apted
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PSY100H1 Full Course Notes
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Loehlin & nicols 1976: examined personalities of 800 pairs of twins. Identical twins were more similar than fraternal: twin studies show that genetic influence accounts for 50% variance b/w individuals" personality traits, genetic basis of traits is consistent across cultures. Lykken it may be chance combination of genes that makes unique individuals genes. Inhibited: when children become startled & distressed as a reaction to new objects or situations. Introverts & extroverts prefer to operate & operate best at their own optimal level of arousal: proposed that resting levels of aras are higher for introverts. Hould(cid:374)"t (cid:449)e all (cid:271)e si(cid:373)ilar (cid:449)ith si(cid:373)ilar traits: one theory is that individual differences reflect characteristics that were important over course of evolution, buss & greiling (1999) Personality traits are stable over time (cid:862)gi(cid:448)e (cid:373)e a (cid:272)hild u(cid:374)til he is se(cid:448)e(cid:374), a(cid:374)d i (cid:449)ill sho(cid:449) (cid:455)ou the (cid:373)a(cid:374)(cid:863) up documentary by michael.
