Exteroceptive Cueing of Response Force

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Science  23 Mar 1962:
Vol. 135, Issue 3508, pp. 1070-1071
DOI: 10.1126/science.135.3508.1070


Food pellet reinforcement for rats was made contingent upon the peak force of a bar-pressing response falling within restricted limits. Two such "bands," 5 to 10 grams and 15 to 20 grams, were established, the momentarily correct "band" indicated by one of two exteroceptive stimulus values. Peak force of response tended to conform to the reinforcement requirements, the two stimulus values setting the occasion for differentiated distributions of response force.