Incubation of anxiety as a function of cognitive differentiation.

Abstract
The present study tested the hypothesis that the incubation effect represents a spread, rather than an increase in anxiety. 72 albino rats were trained to asymptotic speeds in a runway. 36 were then shocked in the original (gray) goal box, 36 in a different (white) goal box. For Ss shocked in the different box, Ss tested 22 hr. after shock showed significantly (.05 level) greater avoidance behavior than those tested 1 hr. after shock. For Ss shocked in the original goal box, no difference in avoidance occurred between 1-hr. and 22-hr. groups. High differentiating Ss showed significantly (.01 level) less incubation than low differentiators. (PsycINFO Database Record (c) 2006 APA, all rights reserved)

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