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Classical eyeblink conditioning in adulthood: effects of age and interstimulus interval on acquisition in the trace paradigm



Classical eyeblink conditioning in adulthood: effects of age and interstimulus interval on acquisition in the trace paradigm



Psychology and Aging 6(1): 109-117



Effects of age and interstimulus interval (ISI) were examined in eyeblink classical conditioning with a trace paradigm. Sixty young adults were trained in Experiment 1 with 6 interstimulus intervals (ISIs): 400, 900, 1,200, 1,500, 1,800, and 2,100 ms. The purpose was to find an ISI value for humans that would result in nonoptimal acquisition. ISIs of 1,200 ms and longer were nonoptimal. Adults aged 17-81 years were trained in Experiment 2 with a nonoptimal 1,800-ms ISI in the trace paradigm. Young and middle-aged subjects demonstrated equivalent levels of acquisition, and only older subjects conditioned more poorly. Aging appears to affect conditioning in the long-ISI trace paradigm as well as in the short-ISI delay paradigm.

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Accession: 039559356

Download citation: RISBibTeXText

PMID: 2029359

DOI: 10.1037/0882-7974.6.1.109


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