T maze reversal learning after several different overtraining procedures.

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Abstract
Experiment I was designed to find the cause of the overlearning-reversal effect by comparing T maze reversal learning by four groups of rats that reveived different patterns of overtraining in acquisition. Reversal was fastest for the group receiving no overtraining and the group receiving all its overtraining trials forced to the correct side. Free-choice overtraining gave somewhat slower reversal, and overtraining with an equal number of forced trials to the two sides gave much slower reversal. In view of the failure to replicate previous findings of faster reversal after overtraining, two further experiments were run in an attempt to replicate these earlier findings. Both experiments gave the same pattern of results as Exp. 1; no overlearning-reversal effect was found. These results appear to be consistent with interpretations in terms of stimulus satiation or of avoidance of non-rewarded cues, but not with interpretations in terms of observing responses, discriminability, or frustration.

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