FIELDS OF INCREASED ACTIVITY - ELECTROPHY SIOLOGICAL CORRELATES

The peculiarities of the spatial-frequency organization of fields of i ncreased 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 p rinciple of formation of the increased activity fields: the spatial in teraction of coherent structures of different frequencies or quantum-f requency superposition of synchronous EEG-waves. This conclusion is ba sed on a fact of the linear relationship between the intensity of a fi eld of increased activity and a number of interacting coherent structu res in it. The obtained data enlarge the ideas on the mechanisms of th e origin of local activation processes in the human cerebral cortex an d the possibility of their use for investigation of the neurophysiolog ical base of the mental processes.