Comparative tests on a human and chimpanzee infant of approximately the same age

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Summary

Examines reactions of a normal human infant between ages of 10 and 14.5 months to psychological tests, and responses of chimpanzee companion, age 7.5 to 12 months, to the same tests. Shows the effe...

Examines reactions of a normal human infant between ages of 10 and 14.5 months to psychological tests, and responses of chimpanzee companion, age 7.5 to 12 months, to the same tests. Shows the effects of different rates of growth and learning abilities in tests which include hand preference, startle reaction time to loud gunshot, delayed reaction, cap-on-head, detour, tickling, reaction to ice in mouth, and response during and after rotation in a swivel chair.

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