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Science 14 June 1974:
Vol. 184. no. 4142, pp. 1194 - 1196
DOI: 10.1126/science.184.4142.1194
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Articles

Operant Conditioning of Single-Unit Response Patterns in Visual Cortex

Paul G. Shinkman 1, Charles J. Bruce 1, and Bryan E. Pfingst 1

1 Department of Psychology and Biological Sciences Research Center of the Child Development Institute, University of North Carolina, Chapel Hill 27514

Unit responses to photic stimuli were studied in cat visual cortex. After the baseline response pattern of a cell was determined, conditioning trials were given during which reinforcement was contingent upon increased firing during a selected segment of the poststimulus interval. Density of reinforcement increased substantially in about half the cells studied; significant increases in firing occurred within, but not outside, the criterion segment.


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Science. ISSN 0036-8075 (print), 1095-9203 (online)