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Chimps Playing the Inspection Game

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Uploaded on Jun 4, 2014

Related Caltech news story: http://www.caltech.edu/content/lookin...

This video shows two of the chimpanzees in Japan playing a matcher-mismatcher game. Each chimp waits for a start cue, then presses a left or right bar on their own screen. After both have pressed, they get feedback in the form of a blinking bar showing what the other chimpanzee picked. If they matched (both left or both right) one chimpanzee gets a food reward which they can eat right away. If they mismatched, the other chimpanzee gets the food reward. Statistical analysis shows that overall, the chimpanzees adjust their frequencies of choosing left and right to respond effectively to what their opponent does, until neither chimpanzee can adjust further and do better. (Video by Chris Martin, Courtesy of Primate Research Institute http://www.pri.kyoto-u.ac.jp)

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