Responses of fastigial nucleus neurones to stimulation of the caudate nucleus in the cat.
- 1 March 1975
- journal article
- Published by Wiley in The Journal of Physiology
- Vol. 245 (3), 655-665
- https://doi.org/10.1113/jphysiol.1975.sp010867
Abstract
1. Extracellular records were made of single unit activity evoked in the fastigial nucleus (FN) by electrical stimulation of the caudate nucleus (CN) in cats anaesthetized with sodium thiopentone. 2. Single shock stimulation evoked bilaterally complex responses having up to three components. These were, in temporal order, with percent of units exhibiting them, (a) a short burst of evoked spikes with either a latency of smaller than 5-5 msec and no associated field potential (6 percent) or a latency of 7-5-20 msec and associated with a prominent negative-going field potential (36 percent); (b) suppression of spontaneous discharges for a period of 20-150 msec (90 percent); (c) a resumption of spike discharges with a transient increase in frequency lasting for 25-500 msec (66 percent). 3. Changes in component (c) of the response patterns of some units were noted during repetitive stimulation The nature of the change depended on the laterality of the FN with respect to the stimulated CN. 4. Mechanisms which might account for the responses are discussed, but it is emphasized that some of the results cannot yet be satisfactorily explained.Keywords
This publication has 13 references indexed in Scilit:
- Responses of interpositus neurones to nerve stimulation in chloralose anaesthetized catsBrain Research, 1973
- Cutaneous afferent responses in interpositus neurones of the catBrain Research, 1972
- Spontaneous activity of cerebellar Purkinje cells and their responses to impulses in climbing fibresThe Journal of Physiology, 1971
- Olivary projections to the cerebellar nuclei in the catExperimental Brain Research, 1970
- Inhibitory control of intracerebellar nuclei by the Purkinje cell axonsExperimental Brain Research, 1970
- Discharge properties of Purkinje cells recorded on single and double microelectrodes.Journal of Neurophysiology, 1969
- Projection of the caudate nucleus on the anterior lobe of the cerebellum of the cat.1969
- The projection of splanchnic afferents on the cerebellum of the catThe Journal of Physiology, 1969
- Responses evoked in the cerebellar cortex by stimulation of the caudate nucleus in the catThe Journal of Physiology, 1968
- Projections of the lentiform nucleus in the monkeyBrain Research, 1966