PSYC 205 Lecture Notes - Lecture 11: 18 Months, Neurohormone, Public Goods Game

• 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 (cid:894)di(cid:396)e(cid:272)t fit(cid:374)ess(cid:895) 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 action in (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 o(cid:449)(cid:374) (cid:396)ep(cid:396)odu(cid:272)ti(cid:448)e su(cid:272)(cid:272)ess. 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. The police offer each man separately a deal: if you testify against the other man (defect), and the other man keeps quiet (acts to aid you), then you go free and the other gets 5 years.