Action of the cerebello-thalamo-cortical projection upon visually initiated reaction-time hand movements in the monkey.
Electrophysiological characterization of thalamo-cortical projections and cerebello-thalamo-cortical pathways was shown by acute experiments in which laminar field potential analysis of responses evoked in the cortex by stimulation of thalamic and cerebellar nuclei was performed in anesthetized monkeys. Based on the results, dynamic activities of cerebro-cerebellar interconnections on voluntary movements were recorded with electrodes chronically implanted in various cortical areas in unanesthetized monkeys and were correlated with their behaviours. Cortical field potentials change in learning processes of visually initiated reaction-time hand movement and in compensating processes after cerebellar hemispherectomy.
Department of Integrative Brain Science, Faculty of Medicine, Kyoto University, Japan.
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K
Sasaki
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H
Gemba
D000818:Animals; D002531:Cerebellum / Q000502:physiology*; D005074:Evoked Potentials, Visual / Q000502:physiology*; D006225:Hand / Q000502:physiology; D008251:Macaca; D009044:Motor Cortex / Q000502:physiology*; D009068:Movement / Q000502:physiology*; D009434:Neural Pathways / Q000502:physiology; D011930:Reaction Time / Q000502:physiology; D013788:Thalamus / Q000502:physiology*