PSYC 205 Chapter Notes - Chapter 11: Reciprocal Altruism, Inclusive Fitness, Game Theory

• School: Queen's University
• Department: Psychology
• Course: PSYC 205
• Professor: Janet Hiebert

Document Summary

Relati(cid:448)e"s offspri(cid:374)g are part of a(cid:374) i(cid:374)di(cid:448)idual"s reprodu(cid:272)ti(cid:448)e fit(cid:374)ess ((cid:272)o(cid:374)tri(cid:271)utio(cid:374)s to the ge(cid:374)e pool), and therefore prosocial behaviour increases the probability of the survival and reprodu(cid:272)tio(cid:374) of ki(cid:374) (cid:272)a(cid:374) spread ge(cid:374)e"s further. Inclusive fitness- (cid:373)easure 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 his or her o(cid:449)(cid:374) offspring (direct fitness) and the offspring of relatives (indirect fitness) Hamilto(cid:374)"s rule- prosocial behaviour can evolve via natural selection if the benefit of the a(cid:272)tio(cid:374) i(cid:374) relatio(cid:374) to the degree of shared ge(cid:374)es is greater tha(cid:374) the (cid:272)osts to a(cid:374) i(cid:374)di(cid:448)idual"s o(cid:449)(cid:374) reproductive success. People seem willing to incur costs if it punished other. A general preference for trustworthy partners thus selects for prosocial behaviour within a species. Research on animal prosocial behaviour has grown in the last 10 years and innovative methodologies have captured different types of prosocial responses. Research in developmental psychology that considers distinct varieties of other- orientated behaviour.