Responses of neurones in the nucleus paragigantocellularis lateralis to somatic nerve stimulation.
Among the seventy-eight extracellularly recorded neurones in the nucleus paragigantocellularis lateralis (PGL), 30 and 31 of them were excited by the stimulation of superficial (SPN) and deep (DPN) peroneal nerve, respectively. In the other 17 neurones, convergent inputs from both nerves to a single neurone were found, and a post-excitatory inhibition was also observed. The consequence of the integrated responses to the stimulation of both nerves depended on the time interval of the stimuli to them. Excitatory post-synaptic potentials (EPSP) were recorded in neurones excited by the stimulation of both nerves. In conclusion, the stimulation of SPN and DPN can excite neurones in PGL, at least partially, via EPSP through their respective pathways; the integrated responses of PGL neurones to both nerves are related to the arrival time of impulses from them.
Gao
K M
KM
Department of Physiology, Shanghai Medical University, People's Republic of China.
Li
P
P
D000818:Animals; D001931:Brain Mapping; D004558:Electric Stimulation / Q000379:methods; D008297:Male; D008526:Medulla Oblongata / Q000502:physiology*; D009474:Neurons / Q000502:physiology*; D010543:Peroneal Nerve / Q000502:physiology*; D051381:Rats; D017207:Rats, Sprague-Dawley; D013997:Time Factors