Abstract

Two groups of male albino rats were given one trial a day in a Lashley maze under high deprivation conditions and received either 1 or 22 pellets (Phase 1). This particular maze was used as a control for slowing the Ss’ running speed. Following stable performance in Phase 1, each group was subdivided into a high and low drive condition, and each S received 22 pellets (Phase 2). In Phase 3, all Ss were extinguished under the same drive conditions prevailing in Phase 2. It was found that the large-reward Ss ran significantly faster than the small-reward Ss in Phase 1. Regardless of drive conditions, the Ss that had received small reward in Phase 1 ran significantly faster in both Phases 2 and 3 than those that had received large reward. The results were interpreted in terms of absolute and relative views of reinforcement.

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