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Classical conditioning in the leechMacrobdella Ditetra as a function of CS and UCS intensity

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Abstract

Classical conditioning in the leech was obtained using two levels of shock as the UCS, two levels of light as the CS; for each condition there was a CS-UCS paired and unpaired group. Analysis showed significant effects of pairing and a UCS intensity by trials interaction during acquisition. Spontaneous recovery was evident during the second day of extinction.

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Author notes

  1. T. Bain Henderson

    Present address: Laboratory of Sensory Sciences, University of Hawaii, 1993 East-West Road, 96822, Honolulu, Hawaii

Authors and Affiliations

  1. Psychology Department, University of South Florida, Tampa, Florida

    T. Bain Henderson & Paschal N. Strong

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  1. T. Bain Henderson
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  2. Paschal N. Strong
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Henderson, T.B., Strong, P.N. Classical conditioning in the leechMacrobdella Ditetra as a function of CS and UCS intensity. Conditional Reflex 7, 210–215 (1972). https://doi.org/10.1007/BF03000220

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