Abstract
According to the learning theory interpretation of self-punitive behavior, conditioned fear is critical to the maintenance of self-punitive running. In this study, fear conditioned to startbox and third runway segment cues was measured before and after punished-extinction (PE) trials. After shock-escape training, 120 male rats were given 0, 5, 10, or 20 PE trials. Fear of segment cues then was measured in either the startbox or third runway segment using hurdle-jump performance as the index of fear. The results support the conditioned-fear explanation. As predicted, immediately following shock-escape training, no difference was found between the amount of fear elicited by startbox and third segment cues, but after five or more PE trials more fear was elicited by startbox cues than by third segment cues. Additional PE trials maintained, but did not increase, the level of conditioned fear of startbox cues.
Published Version
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