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Responses of neurones in the brainstem raphe nuclei to stimulation of the cerebellar fastigial nuclei in the cat |
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| Authors: | R Morris |
| Affiliation: | 1. Medical School, Faculty of Health Sciences, Aristotle University of Thessaloniki, P.O. Box 376, 54124 Thessaloniki, Greece;2. Laboratory for Human Brain Dynamics, AAI Scientific Cultural Services Ltd., Office 501, Galaxias Building Block A, 33 Arch. Makarios III Avenue, 1065 Nicosia, Cyprus;3. Division of Newborn Medicine, Department of Medicine, Boston Children''s Hospital, Harvard Medical School, 9 Hope Av., 02453 Waltham, USA |
| Abstract: | Stimulation of the fastigial nuclei of the cerebellum was found to excite units located throughout the raphe nuclei of the brainstem. Raphe spinal units with axons conducting at velocities below 20 m/s were either unaffected by fastigial nucleus stimulation or inconsistently excited at long latency. In contrast units with faster conducting spinal axons throughout the raphe and more dorsally in the reticular formation were excited by stimulation of the fastigial nuclei. Many of these units responded at short latency and followed high rates of repetitive stimulation. |
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