PSYCH 2B03 Lecture Notes - Platelet, Sensation Seeking, Extraversion And Introversion
18 Jun 2013
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Even though we think of trait theorist as biologically based, they can be fixed and unchangeable shifts in traits as we age: different genes become active or cease to be active. Higher in average extroversion, lower in introversion (africa, asia) Higher in openness lower in agreeableness typically self-reported levels, bias to a certain degree, based on cultural preferences for certain things. Assumption: differences due to genetically based differences, different gene pool. Evidence comparing asian and european/north american for biological difference in other aspects such as temperament: because the differences occur at birth it is thought to be genetic. Zuckerman & kulman"s alternate five impulsive sensation seeking: what zuckerman spent most of his life studying sociability (extraversion) Difference between eysenck: focus primarily on the electrical activity of the brain whereas zuckerman focuses on brain chemistry. Brain of extroverts tend to be under aroused in terms of activity of the dopamine using neurons.
