PSYC 3280 Chapter Notes - Chapter 10: Social Grooming, Breastfeeding, Endorphins

• School: York University
• Department: Psychology
• Course: PSYC 3280
• Professor: Suzanne Mcdonald

Document Summary

Defining cooperation: cooperation typically refers to an outcome in which two or more interacting individuals each receives a net benefit from their joint actions, despite the costs they have to pay for undertaking such actions. Helping in the birthing process: cooperation in the rodriques fruit bats, pregnant fruit bats must assume a feet-down position in order to give birth; yet, Biological marketplace : consider the ability to groom another individual as one resource, and providing aid to an individual that is involved in some sort of aggressive interaction as another resource. Imagine the following scenario: while in separate rooms, two criminal suspects are interrogated by the police in the hope of getting a confession from one or both of them. If suspect 1 defects, but suspect 2 cooperates, the former receives a payoff of t (the temptation to cheat payoff; 0 years in jail), and the latter receives s (the sucker"s payoff;