Some electrophysiological correlates of classical and instrumental behavior


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Abstract

In a trial consisting of a response interval followed immediately by an interval during which 6 dogs wait for food, instrumental lever pressing is confined to the 1st segment and classically conditioned salivation to the 2nd. On this same schedule, pyramidal multiple-unit activity showed high levels during lever pressing and eating, but fell to pretrial levels during waiting periods when Ss stood immobile but tense. Reticular multiple-unit activity remained high throughout the trial, showing a peak during eating. Hippocampal theta activity was not obviously related to either segment. Thus, when instrumental and classical behaviors are separated, pyramidal and reticular activity are also partially separated. (18 ref.) (PsycINFO Database Record (c) 2006 APA, all rights reserved)

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