Abstract
Three groups of dogs were Sidman avoidance trained. They then received different kinds of Pavlovian fear conditioning. For one group CSs and USs occurred randomly and independently; for a second group, CSs predicted the occurrence of USs; for a third group, CSs predicted the absence of the USs. The CSs were subsequently presented while S performed the avoidance response. CSs which had predicted the occurrence or the absence of USs produced, respectively, increases and decreases in avoidance rate. For the group with random CSs and USs in conditioning, the CS had no effect upon avoidance.
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References
Rescorla, R. A., & LoLordo, V. M. Inhibition of avoidance behavior. J. comp. physiol. Psychol., 1965, 59, 406–412.
Solomon, R. L., & Wynne, L. C. Traumatic avoidance learning: Acquisition in normal dogs. Psychol. Monogr., 1953, 67, No. 4 (Whole No. 354).
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This research was supported by United States Public Health Service Grant MH-04202 to Richard L. Solomon. The author thanks Dr. Solomon for his advice and criticism.
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Rescorla, R.A. Predictability and number of pairings in Pavlovian fear conditioning. Psychon Sci 4, 383–384 (1966). https://doi.org/10.3758/BF03342350
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DOI: https://doi.org/10.3758/BF03342350