Heart rate: changes during conditioned suppression in rats.
Heart rate of rats was recorded in the Estes-Skinner conditioned emotional response situation. Response to the conditioned stimulus was a decrease in rate. The change in heart rate was conditioned more slowly than suppression of bar-pressing; it was of shorter duration and was more variable than suppression.
D000818:Animals; D001522:Behavior, Animal; D003213:Conditioning, Psychological; D004558:Electric Stimulation; D004597:Electroshock; D006339:Heart Rate; D008297:Male; D009622:Noise; D051381:Rats