PSYC100 Study Guide - Midterm Guide: Prosocial Behavior, Monoamine Oxidase A, Social Loafing

• School: University of Delaware
• Department: Psychology
• Course: PSYC100
• Professor: Agnes R.Ly

Document Summary

Chapter 12: social psychology: since over the course of human evolution being kicked out of the group would have had dire consequences, people are motivated to maintain good relations with members of their groups. The social brain hypothesis places challenges in the context of brain size; primates have large prefrontal cortexes because they live in dynamic and complex social groups that change over time. Came about because of wwii: people favor their own groups, humans automatically and pervasively form groups. Groups in which people belong to are ingroup and those they do not belong to are outgroups. Formation of ingroups and outgroups: ingroup is a group we personally belong to and outgroup is one that we do not personally belong to. Two conditions critical for ingroup formation are reciprocity and transitivity. Transitivity is means that people generally share their friends" opinions of other people. Once people categorize others as ingroup or outgroup members, they treat the others accordingly.