Position preference based on differential food privation

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61 male albino rats received food equally often in the 2 arms of a T maze. The Ss were 23-hr food deprived for trials to one side and nondeprived for trials to the other side. On free trials Ss preferred the side where they had eaten when deprived (p < .001), the extent of the preference was the same (1) whether rewards on the 2 sides were or were not flavored distinctively, and (2) regardless of test trial deprivation. Deprivation at the time of reinforcement by food appears to be a parameter of incentive motivation, an alternative to Hull's hypothesis that deprivation produces a drive state that directly energizes behavior. (PsycINFO Database Record (c) 2006 APA, all rights reserved)

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