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October 1965

A Stereotaxic Atlas of the Chimpanzee Brain.

Arch Neurol. 1965;13(4):450. doi:10.1001/archneur.1965.00470040116024

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This stereotaxic atlas of the chimpanzee brain was prepared because of the increasing importance of this animal in behavioral and neurophysio-logical research. Financial support for this study was provided by the US Air Force Office of Scientific Research. While the chimpanzee is recognized as a superb subject for certain behavioral studies, the expense and difficulties involved in the use of these animals for neurophysiological studies suggest that the cat and monkey will remain as the most widely used animals for such investigations. Since stereotaxic surgery still involves considerable trial and error, few laboratories could afford many errors in animals as expensive as the chimpanzee.

The atlas is based on eight chimpanzee brains, all but one of which were perfused by US Air Force personnel in the Congo. Body weight of individual animals varied from 15 to 39 lb (6.8 to 17.7 kg), while estimated ages as determined from dental

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