PSYCH 3F03 Lecture Notes - Lecture 6: Wrinkle, Human Behaviour, Estrous Cycle
13 Sep 2018
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Systems co-opted from other systems, put to new uses. Ex) flb/fln: faculty of language (broad/narrow: broad: systems evolved, but not for language, narrow: mechanisms unique to human language, s ll haven"t found any reverse enbineerinb. Infer func on from form (our job) Ex) why do ngers wrinkle when they get wet: observa on: nerve damage = ngers don"t wrinkle, so water doesn"t directly cause wrinkling, examine cross-species: macaques (old world monkeys) have it o. Di cult to use to explain psychological adapta ons o must observe process (not just a structure) o depends on state of science (s ll gaining understanding of things) Hunger = nd food speci c hungers for foods that are nutrient-rich but used to be hard to come by (salt, fat, spice) Lust = reproduc on, pass on genes (it is pleasurable so we will seek it)
