THE EFFECT OF OVERTRAINING ON DISCRIMINATION LEARNING IN THE WHITE RATS

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  • シロネズミの弁別学習におよぼす過剰訓練効果
  • シロネズミ ノ ベンベツ ガクシュウ ニ オヨボス カジョウ クンレン コウカ

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Abstract

Rats were given two independent discrimination tasks in a Y-maze either to the criterion or under overtraining condition and the transfer of cue-association established during overtraining to the subsequent reversal learning in a straightrunway was examined. The effects of overtraining upon the reversal learning were as follows: In Group W, in which both tasks were reversed, facilitation was observed. In Group P, in which one of the two tasks was reversed and the other not reversed, there was no facilitation effect. In Group S, in which one of the tasks was reversed but the other task was replaced by the new task, there was some facilitation effect. In Group P, there was a retention loss of the nonreversed task as a result of overtraining, suggesting the inter-(stimulus) dimension interaction.

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