[Neuron mechanisms of the regulation of bulbar vagosolitary activity by structures of basolateral amygdala nuclei in cats].
Neuronal reactivity to single stimuli applied to both the peripheral nerves and the cortex, was the same in the cat solitary tract nucleus. The 1-20 Hz stimulation frequency rendered the reactivity either tonic in character or with reduced firing rate. A high degree of convergence (80.2%) on baso-lateral nuclei neurons was established, as well as a significant cortico-fugal effect (71%) on the viscero-sensory units of these nuclei. Single shocks and tetanic stimulation of the baso-lateral amygdala evoked mostly phasic responses of the primary as well as secondary vagal neurons. Feed-back mechanisms of the amygdaloid control of the bulbar viscero-sensory units are discussed.
Baklavadzhian
O G
OG
Institute of Physiology of the Armen. Acad. Sci., Yerevan, Republic of Armenia.
Avetisian
E V
EV
Mikaelian
R N
RN
Adamian
F A
FA
Markosian
R M
RM
Petrosian
A A
AA
D000679:Amygdala / Q000502:physiology*; D000818:Animals; D002415:Cats; D004525:Efferent Pathways / Q000502:physiology; D004558:Electric Stimulation; D009474:Neurons / Q000502:physiology*; D012584:Sciatic Nerve / Q000502:physiology; D017552:Solitary Nucleus / Q000166:cytology / Q000502:physiology*; D013003:Somatosensory Cortex / Q000502:physiology; D013153:Splanchnic Nerves / Q000502:physiology; D014630:Vagus Nerve / Q000166:cytology / Q000502:physiology*; D017833:Visceral Afferents / Q000502:physiology