Reversal learning of an avoidance response and the Kamin effect


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Abstract

55 rats were trained to avoid shock in a 1-way avoidance box by running from Side A into Side B within 5 sec. after a start gate was opened. After attaining criterion, Ss were taught the reversal avoidance (running from Side B to Side A) with intervals of 0, 1, 4, 22, or 44 hr. between learning and reversal. The relation between prereversal interval and ease of reversal avoidance learning was signficant and nonlinear. Groups with prereversal intervals of 0 or 44 hr. were superior to groups with intermediate intervals. The results are analogous to the Kamin effect in shuttlebox avoidance learning. (PsycINFO Database Record (c) 2006 APA, all rights reserved)

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