Intracranial Reward Delay and the Acquisition Rate of a Brightness Discriminaton

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Science  14 Feb 1964:
Vol. 143, Issue 3607, pp. 702-703
DOI: 10.1126/science.143.3607.702


An application of the techniques of intracranial self-stimulation to the study of delayed reward indicates that the rate of discrimination learning for stimulation of the hypothalamus is a decreasing function of the delay interval. The resulting delay-of-reward gradient does not appear to differ appreciably from other such gradients based on food reward.