PSYCH 2B03 Lecture Notes - Lecture 26: Eysenck Personality Questionnaire, Extraversion And Introversion

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25 Aug 2016
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Eysenck Personality Inventory (EPI)
57 statements which people agreed or disagreed with
measures only extraversion and neuroticism
Eysenck Personality Questionnaire
measures all factors
90 items
-inventory came before questionnaire
- scientific/empirical mind
- wanted to understand physiological/biological basis of dimensions
Arousal and Efficiency
- cortical arousal: how active/electrically busy was the upper layer in
the brain
explanation for how we understand relationship between cortical
relationship and extrovert/introvert: relationship between arousal
generally and efficiency/performance
- not very aroused: performance not so great
- as arousal heightens, performance improves
- peak/optimal point exists
- increasing arousal beyond optimal point: performance decreases
Reticular Activating System
- sends impulses from base of brain to cortex to arouse us
- very strong evidence for function, RAS important in transition from
sleep to wakefulness
Extrovert Arousal: chronically underaroused
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