A Direct Test of Sheffield's Notion of "Stimulus Aftereffects of Eating" in Explaining the Partial Reinforcement Effect
Woodward, Paul Douglas
2 direct tests of Sheffield's notion of "aftereffects of reinforcement" were to involve discriminating the stimulus consequences of eating from not eating, and stopping and starting from not stopping. Ss' task was to associate one member of the pair of aftereffects with one turning response and the other member of the aftereffect pair with the other turning response. Overall measures of performance showed no increase in the percentage of correct responses to a level greater than chance, but did indicate decreased running times. The results of similar studies, and the performance of individual Ss indicated that Ss of both groups were in the preliminary stages of a typical discrimination-learning situation, and that Ss might learn the discrimination, given additional trials.
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