PSY 352 Lecture Notes - Lecture 13: Psy

• School: University of Arizona
• Department: Psychology Main
• Course: PSY 352
• Professor: Adam Lazarewicz

Document Summary

Charles darwin gives process by which things change over time (cid:862)hostile forces of nature(cid:863) e(cid:454): disease, predators, weather, etc. Natural selection: variations that promote survival/reproduction more descendants (and vice versa) Sexual selection: evolution of characteristics that promote reproduction. Some adaptations = problematic? (ex: huge peacock feathers = easy for predators) Intrasexual competition: characteristics that give winner access to mates (moose fighting with antlers) Intersexual competition: characteristics that increase chances of being selected as a mate. Anything that promotes survival of genes = adaptive. Kin selection: tendency to offer more help to those with more genetic overlap. Evolution & human nature (cid:862)grand(cid:863) theor(cid:455) of ps(cid:455)cholog(cid:455) Characteristics that seem to have evolved in all humans. Ex: castaway, too much alone time, makes friends with volleyball. Cyberball: never get the ball in fake game, people start feeling depressed & anxious, eventually withdraw. Worse performance on aptitude test. fmri shows same as physical pain.