Attenuation of Baroreflexes During Operant Cardiac Conditioning

Bernard T. Engel, James A. Joseph

Research output: Contribution to journalArticlepeer-review

15 Scopus citations


Three monkeys were trained to slow and to speed heart rate on an operant schedule. After the animals were performing highly reliably they received injections of nitroglycerin or phenylephrine to elicit baroreflexes during control periods and during slowing or speeding sessions. The findings were that each animal reliably attenuated its baroreflex sensitivity and thereby avoided shock. Thus, the data showed that under appropriate behavioral conditions homeostatic adjustments of the cardiovascular system are reduced.

Original languageEnglish (US)
Pages (from-to)609-614
Number of pages6
Issue number6
StatePublished - Nov 1982


  • Baroreceptors
  • Baroreflex sensitivity
  • Biofeedback
  • Blood pressure
  • Cardiovascular
  • Heart rate
  • Nitroglycerin
  • Operant conditioning
  • Phenylephrine

ASJC Scopus subject areas

  • Neuroscience(all)
  • Neuropsychology and Physiological Psychology
  • Experimental and Cognitive Psychology
  • Neurology
  • Endocrine and Autonomic Systems
  • Developmental Neuroscience
  • Cognitive Neuroscience
  • Biological Psychiatry


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