The Cerebellum, Epilepsy, and Behavior - download pdf or read online

By Ray S. Snider (auth.), Irving S. Cooper, Manuel Riklan, Ray S. Snider (eds.)

ISBN-10: 1461345081

ISBN-13: 9781461345084

ISBN-10: 1461345103

ISBN-13: 9781461345107

In cats anesthetized evenly with pentobarbital or alpha-chloralose, electric stimulation of the paramedian lobule of cerebellum ended in a metamorphosis of EEG trend. ahead of stimulation the development consisted of h igh-ampl itude sluggish waves with superimposed low-ampl itude quickly job. furthermore, the EEGs of animals anesthetized with chloralose confirmed "chloralose spikes". instantly following short cerebellar stimulation the sluggish wave task and spikes disappeared, leaving in basic terms low-voltage speedy task. The impression used to be so much stated within the contralateral leads from the rostral parts of the cerebrum. research of the parameters superior in evoking this impact printed that stimulation frequency, teach length, and doubtless pulse length affected the length of suppression in a sigmoid type, with inflection issues at nearly ninety Hz, 2.5 sec, and 1 msec, respectively. Above threshold values, stimulation cur­ hire confirmed an nearly linear courting to period of EEG sup­ pression. The after-discharge due to focal electric stimulation of the cerebral cortex will be shortened via electric stimulation of the para­ median lobule. The impression used to be primarily an identical whilst cerebellar stim­ ulation preceded, happened in the course of, or the cerebral cortical stim­ ulation. the good variability of the after-discharge due to cerebral cortical stimulation in addition to the variety of the results of cerebellar stimulation made it impractical to check systematically the parameters op­ timal for shorten ing after-discharge. this sort of examine wi II require use of an conscious, ideally partly confined animal with electrodes chronically implanted.

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Handbook of Physiology". : American Physiological Society, 1959, pp. 329363. M. & HALPERN, MoL. Effect of Diphenylhydantoin and other antiepileptic drugs on epileptiform activity and Purkinje cell discharge rates. ) 13:387-400, 1972. , die Erregungsablaufe in cortica I en Hi rnregionen be i Katze und Hund. Arch. Psych iat. Nervenkr. 183:206-244, 1949. ~ 36 A. FERNANDEZ-GUARDIOLA ET AL. A. The red nucleus in the monkey (Macaca Mulatto): A Golgi and electron microscopic study. J. Compo Neurol.

A, SMR control amplitude and S D. S, Spinal responses occurring before a cortical clonic wave peak. C, after the clonic wave. Ordinates, SMR amplitude in microvolts . Abcissae, time in msec. 0 marks the cion ic wave peak. conspicuous inhibition, during the intervals between the clonic waves and during the tonic phase of the electrocortical convulsive discharge. Partial sections of the bra in stem were performed (Fernandez-Guardiola, Oku java , & Guma, 1968) in order to investigate the poss ible pathways mediating the effects of electrocortical seizures on the SMR, as recorded in the intact animal.

CHOH-LUH-L1. The effect of dentate and rubral stimulation on neuronal activity in the nucleus ruber. Exp. Neurol. 23:58-66, 1969. , & MUTANI, R. Spontaneous sleep abnormalities in a case of Dyssynergia cerebellaris myoclonica. EpiJepsia, (Amst) 8:271-281, 1967. , & WALBERG, F. The Raphe nuclei of the Brain Stem in the cat efferent connections. J. Compo Neurol. 114:239, 1960. BRODAL, A. C. Rubro-cerebellar connections: An experimental study in the cat. Anat. Rec. 118:455-485, 1954. CASPERS, N.

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The Cerebellum, Epilepsy, and Behavior by Ray S. Snider (auth.), Irving S. Cooper, Manuel Riklan, Ray S. Snider (eds.)

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