[Fields of increased activity: the electrophysiological correlates].
The peculiarities of the spatial-frequency organization of fields of increased activity in human cerebral cortex were evaluated by the index of the spatial potentials' synchronization. The method of topographic mapping of biopotential coherent structures permitted to reveal the principle of formation of the increased activity fields: the spatial interaction of coherent structures of different frequencies or quantum-frequency superposition of synchronous EEG-waves. This conclusion is based on a fact of the linear relationship between the intensity of a field of increased activity and a number of interacting coherent structures in it. The obtained data enlarge the ideas on the mechanisms of the origin of local activation processes in the human cerebral cortex and the possibility of their use for investigation of the neurophysiological base of the mental processes.
Sviderskaia
N E
NE
Korol'kova
T A
TA
Tishaninova
L V
LV
D000293:Adolescent; D000328:Adult; D001931:Brain Mapping / Q000295:instrumentation / Q000379:methods; D002540:Cerebral Cortex / Q000502:physiology*; D003344:Cortical Synchronization / Q000295:instrumentation / Q000379:methods; D004594:Electrophysiology; D005260:Female; D005583:Fourier Analysis; D006613:Higher Nervous Activity / Q000502:physiology*; D006801:Humans; D008297:Male; D008606:Mental Processes / Q000502:physiology
Polia povyshennoĭ aktivnosti: élektrofiziologicheskie korreliaty.