PSYCH 1XX3 Lecture Notes - Lecture 2: Cuckold, Parental Investment, Heritability
11 Oct 2018
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Document Summary
In humans, sexual selection drives different strategies to optimize reproductive success. Today, we discuss how these adaptations influence mate selections and risk-taking behaviours. Everyone has ancestors but not everyone will produce descendants. Genes increase their own replication in two ways: Direct : influence individual bodies to survive & reproduce. Indirect : influence individual bodies to help other bodies that are likely to contain copies of themselves. Maternal grandmothers are favourites b/c of genetic certainty. The evolution of characteristics not because of survival advantage, but because of mating advantage. Members of one sex prefer certain qualities in mates. Women look for: possession of resources, access to resources, commitment. Sexual over perception bias leads males to over-infer sexual interest. Behaviour = psychological mechanisms + input from environment. Evolved psychological mechanisms are coded in the brain. Evolved psychological mechanisms can be described as information processing devices to solve adaptive problems. Outcome variance can drive different solutions to the same problems.
