Reports

Errorless Discrimination Learning in the Pigeon: Effects of Chlorpromazine and Imipramine

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Science  19 Apr 1963:
Vol. 140, Issue 3564, pp. 318-319
DOI: 10.1126/science.140.3564.318

Abstract

Chlorpromazine or imipramine disrupts a pigeon's performance on a discrimination between a vertical and horizontal line only if the discrimination was learned with errors. Errorless learning is obtained if training starts with an easy-to-learn discrimination of color and shifts progressively to the more difficult horizontal-vertical discrimination.

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