PSYCH 1XX3 Lecture Notes - Lecture 3: Cuckold, David Buss, Homicide
23 Jan 2018
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Document Summary
Heritable variants lead to differential reproductive success. Psychological mechanisms can be inherited and passed on to generation after generation. The evolution of characteristics not because of survival advantage, but because of mating advantage. Members of the same sex compete with each other, and the winner gain mating access to the opposite sex. Members of one sex prefer certain qualities. If he can afford to carry on this tail, he must have really good genes to pass on to his offspring. Male voice pitch is related to attractiveness for humans. Lower voice pitch is a heritable trait - testosterone. Low voice can correlated with poor immune system & less sperm count. Men with lower voice pitch have more offspring. Key assumptions: behaviour = psychological mechanisms + input from the environment. We tend to like salty, sweet & fatty foods. We have selective preferences for these tastes.
