Multiple unit activity recorded from amygdala central nucleus during Pavlovian heart rate conditioning in rabbit.
Using a Pavlovian heart rate conditioning paradigm, a rapid development of short latency increases in the multiple unit activity of the amygdala central nucleus were observed in response to a tone conditioned stimulus. In some cases the increase in multiple unit response showed a parallel development with the conditioned decelerative heart rate response and were significantly correlated with it. These results suggest a direct role for the central nucleus in the expression of conditioned heart rate responding in rabbit.
D000679:Amygdala / Q000502:physiology*; D000818:Animals; D003214:Conditioning, Classical / Q000502:physiology*; D005071:Evoked Potentials; D005239:Fear / Q000502:physiology; D006339:Heart Rate; D008526:Medulla Oblongata / Q000502:physiology; D009434:Neural Pathways / Q000502:physiology; D009474:Neurons / Q000502:physiology; D011817:Rabbits; D014630:Vagus Nerve / Q000502:physiology