Abstract
Seventy male hooded rats received single-alternation runway training in which goalbox placements were interpolated during the 20-sec intertrial interval. Placements provided alternating reward/ nonreward, random reward/nonreward, continuous reward, or continuous nonreward. Relative to nonplaced controls, alternation performance was reliably facilitated only by intertrial alternation placements which re-presented the goal event of each immediately preceding instrumental trial. All other intertrial procedures reliably impaired alternation performance. Degree of impairment was graded from least to most as follows: intertrial alternation placements with the goal event opposite to that of each immediately preceding instrumental trial, intertrial placements with continuous non-reward, intertrial placements with continuous reward, and intertrial placements with random reward/nonreward.
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These data were reported at the Midwestern Psychological Association meeting, Chicago, May 1974.
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Franchina, J.J., Rice, J.X. Effects of intertrial reward and/or nonreward placements during a 20-second intertrial interval on single-alternation training in rats. Animal Learning & Behavior 4, 411–415 (1976). https://doi.org/10.3758/BF03214431
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DOI: https://doi.org/10.3758/BF03214431