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ArticlesCopyright © 1978 by American Association for the Advancement of Science
Localization of primate calls by old world monkeys
Monkeys (Macaca) were trained by operant conditioning techniques to report the minimum detectable change in location of a sound in space, and were tested with a series of recorded coo or clear call vocalizations. Acuity of localization varied from approximately 4 degrees to 15 degrees and was a function of the magnitude of the change in pitch (frequency modulation) of the different clear calls.
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Science. ISSN 0036-8075 (print), 1095-9203 (online)