yerkes in A Sentence

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    The Yerkes National Primate Research Center.

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    The Yerkes Observatory.

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    Some years ago, when I visited the Yerkes primate laboratory in Atlanta.

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    She was returned to the Yerkes National Primate Research Center in 1957

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    She was returned to the Yerkes National Primate Research Center in 1957 when she became too big to handle.

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    The Yerkes-Dodson Law(drawn up by psychologists Robert Yerkes and John Dodson) points out that stress can be productive up to a point and then it results in reduced productivity.

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    Yerkes studied chimpanzees until World War II, while Köhler concluded five years of study and published his famous Mentality of Apes in 1925(which is coincidentally when Yerkes began his analyses), eventually concluding,"chimpanzees manifest intelligent behaviour of the general kind familiar in human beings… a type of behaviour which counts as specifically human" 1925.

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