[Effect of stimulation of the superior colliculi of the tectum mesencephali on the motor neurons of the neck muscles of the cat].
Postsynaptic potentials evoked by stimulation of three points of the superior colliculus in motoneurons of neck muscles were studied in experiments on cats under chloralosenembutal anesthesia. Stimulation of ipsilateral superior colliculus evoked EPSP with latencies ranging from 1.5 to 3.5 ms in 49 motoneurons. Stimulation of contralateral superior colliculus evoked EPSP with latencies ranging from 1.5 to 3.0 ms in 63 motoneurons and IPSP with latencies ranging from 2.6 to 5.0 ms in 10 motoneurons. It is suggested that the recorded postsynaptic potentials are mono- and disynaptic.
D000818:Animals; D001931:Brain Mapping; D002415:Cats; D004558:Electric Stimulation; D005071:Evoked Potentials; D005116:Extrapyramidal Tracts / Q000502:physiology; D009046:Motor Neurons / Q000502:physiology*; D009132:Muscles / Q000294:innervation*; D009334:Neck Muscles / Q000294:innervation*; D009433:Neural Inhibition; D011930:Reaction Time / Q000502:physiology; D013116:Spinal Cord / Q000502:physiology*; D013477:Superior Colliculi / Q000502:physiology*; D009435:Synaptic Transmission
Vliianie stimuliatsii verkhnikh bugorkov kryshi srednego mozga na motoneĭrony sheĭnykh myshts u koshki.