The CS-US interval (ISI) function in rabbit nictitating membrane response conditioning with very long intertriai intervals |
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| Authors: | Charles F Levinthal Ross H Tartell Carrie M Margolin Howard Fishman |
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| Institution: | 1. Department of Psychology, Hofstra University, 11550, Hempstead, NY
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| Abstract: | In Experiment 1, four values of conditioned stimulus-unconditioned stimulus interval, or interstimulus interval (ISI) (200, 500, 800, and 1,100 msec) were studied in one trial/day acquisition of the conditioned nictitating membrane response of the rabbit. The 1,100-msec ISI group was superior to the other groups, contrary to the usual findings of ISI studies in the conditioning literature. In Experiment 2, effective conditioning levels were attained with an ISI as long as 2,200 msec, when the intertriai interval was set at either 24 or 48 h. Results are interpreted in terms of the role of orienting responses in the conditioning process. |
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