[Spontaneous unit activity of locus coeruleus neurons after destruction of some nuclei of the medulla oblongata].
Bilateral lesions of the nuclei prepositus hypoglossi produced a more than twofold decrease in the mean frequency discharges in the neurons of the nucleus coeruleus. The number of neurons with burst activity and the number of polymodal neurons substantially increased. Lesion of the nucleus tractus solitarius resulted in an increase in the number of neurons with regular activity and certain decrease in the mean discharge frequency of coeruleus neurons. The results confirm the suggestion about a substantial role of the nucleus prepositus hypoglossi in relaying afferent effects to the activity of locus coeruleus neurons.
Khanbabian
M V
MV
Department of Human and Animal Physiology, Abovyan Armenian Pedagogical University, Yerevan, Armenia.
Saakian
N A
NA
Sarkisian
N A
NA
Mushegian
G Kh
GKh
D000818:Animals; D004558:Electric Stimulation / Q000295:instrumentation; D007002:Hypoglossal Nerve / Q000503:physiopathology; D008125:Locus Coeruleus / Q000503:physiopathology*; D008526:Medulla Oblongata / Q000473:pathology*; D008839:Microelectrodes; D009475:Neurons, Afferent / Q000502:physiology*; D009476:Neurons, Efferent / Q000502:physiology*; D051381:Rats; D017552:Solitary Nucleus / Q000473:pathology; D013997:Time Factors