COMPLETE Personality Theories Notes: Part 11 -- got a 4.0 in the course!

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Department
Counseling, Developmental, and Educational Psychology
Course
APSY 2240
Professor
All Professors
Semester
Winter

Description
Chapter 5 Reading Notes­ Biology Aspects of Personality *Direct Genetic Effects ­Natural Selection and Functionalism natural selection: process by which certain adaptive characteristics emerge over generations attention drawn to function of a characteristic evolutionary personality theory: an area of study applying biological evolutionary theory to human  personality differences in personality that are adaptive and emerge over generations ad there are certain tendencies  that are better fit and link with survival in general ­Angelman Syndrome: Genes and Personality excessively happy but suffer mental retardation, sleep very little, walk with jerky movement biological disorder caused by a defect on chromosome 15 genes affect development including structural development and physiological development Williams Syndrome Excessively social personality and limited spatial and intellectual ability Missing 2 dozen genes on chromosome 7 ­Behavioral Genomics study of how genes affect behavior *Genetic Effects through Temperament temperament: stable individual differences in emotional reactivity ­Activity, Emotionality, Sociability, Impulsivity 4 basic aspects of temperament: activity, emotionality, sociability, impulsive/aggressive ­Eysenck’s Model of Nervous System Temperament ties the notions of introversion­extroversion to central nervous system extroverts have a relatively low level of brain arousal and seek stimulation  introverts thought to have a higher level of cns arousal and shy away from stimulating social environments Eyesenck points to the part of the brain known as ascending reticular activating system  Many problems in trying to test a nervous system based theory of temperament 1)difficult to define and measure definition of “arousal” 2) many problems arise from fact that the human body is a system that attempts to  maintain equilibrium Introverts are slower to habituate to sensory stimuli  ­­Approach and Inhibition: Gray’s Reinforcement Sensitivity Theory behavioral inhibition system: system provides the orienting response to novel situations and also responds  to things that are punishing if this system is sensitive, then prone to anxiety, always alert behavioral activation system: regulates response to rewards if this system is overly active then impulsive and constantly seeking rewards ­Sensation Seeking and Addiction­Proneness sensation seeking: tendency to seek out highly stimulating activities and novelty Zuckerman’s theory proposes that sensation seekers may have a low level of natural activation and seek  arousal from the environment neurotransmitters: chemical used by nerves to communicate neurotransmitter dopamine there are genetic differences in availibilty and regulation may indicate cocaine use s
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