Psychology 2720A/B Lecture Notes - Lecture 8: Deindividuation, Amygdala, Homicide

• School: Western University
• Department: Psychology
• Course: Psychology 2720A/B
• Professor: Graeme Haynes

Document Summary

Group: two or more persons who are interacting with and/or in uencing one another! E. g. , you wouldn"t consider a random group of people in an elevator a group. However if the elevator broke down, the people would be forced to interact and would therefore be a group! Baumeister & leary: survival advantage: innate need to belong (universal across all cultures)! Motivates collective action: more likely to have success at some sort of change if you get together with others to form a movement (e. g. , women"s rights movement, antiwar movement etc. Most social groups range from 2-6 members (who then belong to larger groups): if groups become too large it makes it harder to interact with all the members! Tend to be homogeneous (alike in age, sex, beliefs, opinions): groups tend to attract people who are already similar before they join (e. g. , jocks, nerds, etc. The presence of others can increase the likelihood of a dominant response on a task!