20 albino rabbits were trained in a classical discrimination conditioning task measuring heart rate (HR) conditioned responses (CRs). Depending upon an individual S's HR CR the intensity of an electric shock US was adjusted daily to maintain approximately a 9% HR CR. The method of shock adjustment and the mean values of intensity and resultant HR responding are presented.
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References
1.
MeredithA. L.SchneidermanN.Heart rate and nictitating membrane classical discrimination conditioning in rabbits under delay versus trace procedures. Psychonomic Science, 1967, 9, 139–140.
