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R D SINGER

Publications and source records attributed to R D SINGER.

9 recordsLinked to original sources

RESISTANCE TO EXTINCTION IN THE GOLDFISH FOLLOWING SCHEDULES OF CONTINUOUS AND VARIABLE INTERVAL REINFORCEMENT.

Four goldfish (Carassius auratus, comet) were reinforced with food when they intercepted a beam of light. Each fish performed on both CRF and VI 50-sec schedules. In subsequent extinctions, the CRF schedule produced more responses on the first day than did VI, but after the first day the post-CRF rate dropped much more rapidly. These results agree with those previously obtained in birds and mammals.

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