PSYC 2130 Chapter Notes - Chapter 9: Feedback, Extraversion And Introversion, Phenylketonuria

• School: York University
• Department: Psychology
• Course: PSYC 2130
• Professor: Frank Marchese

Document Summary

Earliest speculations about the relationship between mind + body. Freud also believed bio science ultimately yield answers. No feature of personality is devoid of hereditary influences, direct or indirect. Endomorphic: plump body type with specific personality correlates. Mesomorphic: muscular body type with specific personality correlates. Ectomorphic: frail body type with specific personality correlates. Somatyped: procedure for assessing physique by assigning scores on 3 dimensions of physical characteristics. Correlated positively with one and only one of each temperament types, negatively with others. Theory of natural selection: based on darwin"s idea that chance genetic variations producing adaptive reproductive + survival advantages will increasingly characterize a species over time. Stabilizing selection: species with greater variability have a greater chance of surviving + reproducing in changing environments, thus variability with in species is adaptive + may be favored over uniformity. Neuromodulators: chemical messengers of the nervous system that spread more than neurotransmitters but less globally then hormones.