Chapter 7 Notes

Chapter 7 Notes - Psychology 227: Introduction to...

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Psychology 227: Introduction to Personality Chapter 7: The Biological Perspective: Biological Processes and Personality Personality is influenced by the workings of the body Eysenck: Extraversion, Neuroticism, and Brain Functions: Extraversion and Cortical Arousal Introverts are quiet, introspective, & disinterested in social activity; extraverts are outgoing, uninhibited, & immersed in social activity – the differences, Eysenck thought, arise from the degree to which the cerebral cortex is activated (introverts have a higher level and refrain from social interaction as to not over stimulate, extraverts need the stimulation ) The two groups function better with the different levels of stimulation Introverts need less drugs to achieve arousal, but more depressant drugs to reach a given level of unalertness Eysenck: Extraversion, Neuroticism, and Brain Functions: Neuroticism and Emotional Arousal People higher in neuroticism are more easily aroused Emotional arousal causes behavioral reflections of both types to emerge more fully; it also sets the stage for conditioning (introverts condition more easily because of higher cortical arousal) Incentive Approach System: Behavioral Approach, Activation, Engagement, or Facilitation Functional approach – what functions do particular kinds of behavior serve? Incentives – things that people desire Behavioral approach system (BAS) – the part of the brain that regulates pursuit of incentives Engaged only in the active pursuit of incentives Related to positive emotions (hope, eagerness, excitement) Positive feelings, and therefore incentives, activate the left prefrontal cortex Incentive Approach System: More Issues in Approach Incentive reactivity – the amount of reaction to a stimulation (also called BAS sensitivity) Incentive Approach System: Neurotransmitters and the Approach System Neurotransmitter – a chemical involved in sending messages along nerve pathways Dopamine – a neurotransmitter believed to be especially important to approach regulation
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This note was uploaded on 04/18/2008 for the course PSY 101 taught by Professor Gardner&walters during the Fall '07 term at N. Arizona.

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Chapter 7 Notes - Psychology 227: Introduction to...

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