Human Evolutionary Biology 1329 Study Guide - Final Guide: Golden Lion Tamarin, Paternal Care, Cooperative Breeding
4 Feb 2014
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Encultured chimp used symbols. match to sample. half full glass, half full sample. Easy picture matching test: movie with bananas out of reach. choose best solution: passed test. hard picture matching test: (locked in cage, use key) passed! interpreted filmed sequences as representing problems faced by the person. Deception task. bad person might take sadie"s food. good person shows sadie where fruit is. bad person won"t share food if they find it. deceive the bad person. chimp points to the wrong container. all passed. Chimp needs a human"s help to get food, but human is blindfolded. only one chimp removed blindfold. the rest just dragged. Alternative hypo: chimps learn the strategy that works without understanding it. Video: rhesus monkeys steal grapes when backs are turned. Apes follow with gaze even if someone only looks with their eyes. Geometric gaze-following: follow where human is looking even if through barrier. evidence they understand gaze meaning.
