PSYC 205 Chapter Notes - Chapter 11: Neurohormone, 18 Months, Emotional Contagion

• School: Queen's University
• Department: Psychology
• Course: PSYC 205
• Professor: Mary C Olmstead

Document Summary

Reproductive fitness- contribution to the gene pool. Inclusive fitness- a (cid:373)easu(cid:396)e of a(cid:374) i(cid:374)di(cid:448)idual"s fit(cid:374)ess that takes i(cid:374)to a(cid:272)(cid:272)ou(cid:374)t thei(cid:396) o(cid:449)(cid:374) offsp(cid:396)i(cid:374)g (direct fitness) and the offspring of relatives (indirect fitness) Ha(cid:373)ilto(cid:374)"s rule- states that a prosocial behaviour can evolve via natural selection if the benefit of the a(cid:272)tio(cid:374) i(cid:374) (cid:396)elatio(cid:374) to the deg(cid:396)ee of sha(cid:396)ed ge(cid:374)es is g(cid:396)eate(cid:396) tha(cid:374) the (cid:272)osts to a(cid:374) i(cid:374)di(cid:448)idual"s own reproductive success. Triver- the evolution of reciprocal altruism- proposed that genes for these behaviours could be selected for if individuals do not indiscriminately act to benefit others but instead direct prosocial behaviour to those who have been prosocial themselves. Game theory- a mathematical study of simulated interactions between two or more individuals. We like punitive behaviours: we punish cheaters and freeloaders. Ultimatum game- one player can give any part of an amount of cash to a second player. This pote(cid:374)tial (cid:396)e(cid:272)ipie(cid:374)t, (cid:272)a(cid:374) (cid:272)hoose (cid:449)hethe(cid:396) to a(cid:272)(cid:272)ept o(cid:396) (cid:396)eje(cid:272)t the p(cid:396)opose(cid:396)"s offe(cid:396).