THE EFFECT OF TRAINING LEVEL AT THE TIME OF DELAY INTRODUCTION ON RUNWAY PERFORMANCE
ARMY MEDICAL RESEARCH LAB FORT KNOX KY
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Using a factorial design, subjects rats were delayed midway down a long runway for 0, 15, or 45 sec after 0, 15, or 75 training trials without delay. All performance changes for delayed subjects were decremental with a higher training level at the time of delay resulting in greater decrements in the runway just posterior to the point of delay. Recovery from the effects of delay occurred for all conditions in spite of continued delay. The results are discussed in terms of frustration-drive, delay of reinforcement, and novelty-reactions models.