Evolutionary Psychology OU Chapter 6 (Altruism)

Social Contract Theory

Abstract if-then logic appears to be a prerequisite to thinking about cooperative exchanges.

WEIRD Societies

Joseph Henrich Western Educated Industrialized Rich Democratic

Altruism

a prosocial behavior, doing things for others at your own expense

Parental investment hypothesis

although the alarm caller is at greater risk by signaling, his or her children may survive as a consequence

Kin-selected altruism

genetic benefit that derives from altruistic acts directed at close relatives with whom the altruist shares genes

Reciprocal Altruism

helping another individual with the expectation of being helped in return (Trivers) (2 hunters work together so they can both eat)

Direct fitness

measures an individual's direct reproductive success via the production of offspring

Conspicuous altruism

more common, but even more anonymous altruistic acts are usually made known to their romantic partner

Competitive altruism

refers to the display of altruism in order to accrue social benefits. Altruism is attractive in mates

Predator confusion hypothesis

the call creates confusion resulting in mad scramble of squirrels rushing for safety; the confusion helps the squirrels to escape

Inclusive fitness

the effects of an individual's actions on the reproductive success of genetic relatives weighted by the degree of genetic relatedness