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Unformatted text preview: Brain Adaptations *Two areas dedicated solely to language-Brocas area: controls syntax (in the front part) - production-Wernickes area: controls meaning/semantics (in the back part) speech comprehension *Primates have both, but not specialized for language (but their brocas area helps them eat better, controls motor movements of face, moth, tongue and enables hearing for them.)-Evolutionary cost of human brain adaptation for speech- (1)we cant chew as well as primates because we have to use language.(2)Loss in the ability of using photographic memory- not as good as chimps Experiment : are you smarter than a chimp? >Numbers shown for 7/10 of a second chimps & humans correct 80% of the time >Numbers shown for 4/10 of a second chimps correct 80% humans correct 40% even after 6 months of training. How do we explain this? *Evolutionary costs of language-Humans are doomed to make meaning: Language slow meaning making-Chimps: Photographic memory, routines Our ability to remember photographically has gone down. Chimps rely on photographic memory which works much faster than our slow meaning making process....
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- Fall '10