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[Shifts in the steady potential in the dynamics of stationary excitation of the cerebral cortex].
- Source :
-
Zhurnal vysshei nervnoi deiatelnosti imeni I P Pavlova [Zh Vyssh Nerv Deiat Im I P Pavlova] 1983 May-Jun; Vol. 33 (3), pp. 407-15. - Publication Year :
- 1983
-
Abstract
- Shifts of steady potentials (SP) in the cerebral cortex of rats were studied during formation of stationary excitation foci by low-frequency electric stimulation and application of penicillin. The dynamics of SP shifts reflects summary effect of depolarization and hyperpolarization processes, actively involved in each cycle of excitation. As a result of functional heterogeneity of different cortical areas, a spontaneously appearing wave of spreading depression (SD) may be transformed into a spiral wave, actively influencing the dynamics of excitation resulting from direct stimulation of the cortex. The cause of long-term inhibition of paroxysmal activity foci may be repeated generation of slow negative waves of SD persisting in conditions of rapid restoration of cortical ability to conduct SD.
Details
- Language :
- Russian
- ISSN :
- 0044-4677
- Volume :
- 33
- Issue :
- 3
- Database :
- MEDLINE
- Journal :
- Zhurnal vysshei nervnoi deiatelnosti imeni I P Pavlova
- Publication Type :
- Academic Journal
- Accession number :
- 6613332