| The activity of cerebellar neurones of the decerebrate dogfish Scyliorhinus during spontaneous swimming movements. | |
| | |
MedLine Citation:
|
PMID: 6747883 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
Patterns of activity of cerebellar neurones in response to cutaneous stimulation and during spontaneous, swimming-like movements were examined, using microelectrodes, in decerebrate dogfish (Scyliorhinus canicula). Continuous swimming movements, lasting for several hours, were obtained in fish in which the medial longitudinal fasciculus (m.l.f.) was lesioned in the rhombencephalon. Purkinje cells (P cells) and some stellate cells (S cells) were observed to discharge rhythmically, in phase with swimming movements. These units were distributed throughout the cerebellum, but with no apparent somatotopic distribution. After curarization, rhythmic motor discharges could still be recorded from ventral roots and phase locked P cell discharges were recorded from the cerebellum. P cells that discharged rhythmically during active swimming movements, did not do so when the body was oscillated passively during quiescent periods. Cutaneous stimulation evoked burst discharges in many P cells at long latency (ca. 100 ms) both before and after curarization and whether or not a rhythmic motor output was being generated. In rhythmically discharging units, a similar response was obtained when cutaneous stimulation was applied during that part of a cycle when the unit was most or least active. It was concluded that cerebellar neurones discharged in phase with the output of the spinal locomotory rhythm generators and independently of peripheral sensory feed-back. |
| | |
Authors:
|
D H Paul; B L Roberts |
Related Documents
:
|
3404223 - Neuronal activity in cortical motor areas related to ipsilateral, contralateral, and bi... 8159293 - Differential contribution of motor cortex and caudate nucleus to instrumental tongue-fo... 21296153 - Fruitless rnai knockdown in males interferes with copulation success in schistocerca gr... |
Publication Detail:
|
Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
|
Title: The Journal of physiology Volume: 352 ISSN: 0022-3751 ISO Abbreviation: J. Physiol. (Lond.) Publication Date: 1984 Jul |
Date Detail:
|
Created Date: 1984-09-19 Completed Date: 1984-09-19 Revised Date: 2009-11-18 |
Medline Journal Info:
|
Nlm Unique ID: 0266262 Medline TA: J Physiol Country: ENGLAND |
Other Details:
|
Languages: eng Pagination: 1-16 Citation Subset: IM |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Action Potentials
/
drug effects Animals Cerebellum / cytology, physiology* Curare / pharmacology Decerebrate State* Dogfish / physiology* Mesencephalon / physiology Movement* / drug effects Neural Pathways / physiology Neurons / physiology* Purkinje Cells / physiology Sharks / physiology* Spinal Cord / physiology Time Factors |
| Chemical | |
Reg. No./Substance:
|
8063-06-7/Curare |
| Comments/Corrections | |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: The tendon of flexor pollicis longus: its effects on the muscular control of force and position at t...
Next Document: Effect of cooling on supraoptic neurohypophysial neuronal activity and on urine flow in the rat.