[The role of various parts of the amygdaloid complex in the regulation of activity of respiratory neurons].
In microelectrophysiological investigations influences of different nuclear regions of the amygdaloid complex on the spike activity of the functionally identified single respiratory neurons of the medulla oblongata were studied in anesthetized cats. It was established a qualitative different character of the changes of unit activity of the medullary respiratory neurons in case of stimulation of phylogenetically old corticomedial or new basolateral nuclear groups of the amygdala. It was shown higher reactivity of the investigated neurons to stimulation of the corticomedial nuclei than basolateral. The influences of the corticomedial nuclear groups on the bulbar inspiratory and expiratory neurons were facilitatory as well as inhibitory with prevailing excitatory effects. It was found that influences of the phylogenetically new neoamygdaloid structures of basolateral region on spike activity of the bulbar respiratory neurons differ accordingly to their topographical differentiation. Mechanisms of amygdaloid control of activity of the medullary respiratory neurons are discussed.
Nersesian
L B
LB
Orbeli Institute of Physiology NAS RA, Yerevan, Armenia.
Baklavadzhian
O G
OG
Eganova
V S
VS
Sarukhanian
R V
RV
D000679:Amygdala / Q000033:anatomy & histology / Q000166:cytology / Q000502:physiology*; D000818:Animals; D002415:Cats; D004558:Electric Stimulation; D009474:Neurons / Q000502:physiology*; D012143:Respiratory Physiological Phenomena