Abstract
Conditioned avoidance responding of Ss receiving subcutaneous injections of adrenocorticotrophic hormone, zinc phosphate vehicle, and physiological saline was studied in the two-way shuttlebox at three UCS intensity levels. In no case did ACTH Ss differ significantly from saline control Ss, but the zinc phosphate vehicle was found to alter performance both during acquisition and extinction.
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This work was supported by Medical Research Council Grant MA 1746. Some of the work was done while the first author held a pre-doctoral terminal year grant from the USPHS and while the second author held a Research Career Award from the Canadian Association for Retarded Children. We are indebted to Susanna Kertesz for help in running the Ss in these studies.
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Ley, K.F., Corson, J.A. Effects of ACTH and zinc phosphate vehicle on shuttlebox CAR. Psychon Sci 20, 307–309 (1970). https://doi.org/10.3758/BF03329082
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DOI: https://doi.org/10.3758/BF03329082