Letter | Published:

Use of 3-Dimensional Shapes for Investigation of Learning Sets in the Rat

Naturevolume 199page1018 (1963) | Download Citation



IN a series of experiments, Harlow1 and other investigators have studied learning-sets in a number of species. Their evidence demonstrates that the ability to form learning sets is related both to the phylogenetic ‘level’ of a species and to the individual animal's ontogenetic development. When trying to establish learning sets in such an animal as the rat, the difficulty has been that the learning of individual problems has taken so long that it was not possible to present sufficient problems to examine this phenomenon of learning to learn.

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  1. 1

    Harlow, H. F. “Learning Set and Error Factor Theory” in Psychology: A Study of a Science, 2, edit. by Koch, S. (McGraw-Hill Book Co., 1959).

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  1. Department of Psychology, University of Sheffield

    • H. KAY


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