Evolutionary social psychology Flashcards
what is evolutionary social psychology
Archer (2001) : an approach to psychology based on the principle of natural selection.
Natural selection
Darwin (1859) : individuals with characteristic well suited to an environment are more likely to survive and pass on their genes to succeeding gyrations will will themselves be better to survive.
Adaptation
possession of characteristics that facilitate survival and reproduction.
fitness
individuals with characteristics well suited to an environment ‘fit’ the environment better than those without.
Altruism
behaviour which helps another individuals fitness despite a fitness cost for the donor (archer,2001)
What is the issue with altruism in regards to evolutionary social psychology?
Buss (2019) : how can altruistic behaviour co- exist with evolutionary pressures favouring selfish acts?
How is the issue with altruism resolved?
Selective altruism : helping behaviour is targeted to relative of offspring to enhance survival of genetic line and therefore fitness.
Explain Burstein, Crandall and Kitayama (1994) study:
method: Rps given hypothetical scenarios, life threatening or everyday, asked if they would help depicted on sex,age, health.
Results: most reliable predictor of helping behaviour was relatedness.
Explain the evolution of selective altruism towards relatives
Dawkins (1979) : gene for selective altruism more likely to survive than a gene for wholesale altruism.
Describe the first mathematical model for selective altruism.
Hamilton (1964) : as relatedness increases, so does tendency to self- sacrifice.
inclusive fitness
people help others in their own self-interest on the basis of genetic commonality, which is derived from cues such as kinship, similarity and familiarity.
Reciprocal altruism
Altruism does not only occur with relatives. Traverse (1971) improves fitness when favour likely to be returned.
Explain the prisoners dilemma for explaining reciprocal altruism
Axelrod and Hamilton (1981) : if only 1 prisoner confess, confessor is set free, but non- confessor serves three years, if neither confess serve one year, if both confess serve two years.
best scenario is to cooperate until you are turned on then retaliate.
Social construct theory
Cosmides and Tooby (1992,2005) : reciprocal altruism requires detection of cheats, if cheat detection has a genetic basis then reciprocal altruism can evolve.
Reciprocal altruism and bystander effect
Thompson (1980) : bystander helping more likely in small integrated communities