[Structure of the field of cerebral biopotentials and the latent period of the human motor response].
An investigation was made into the statistical interconnection between the latency of human conditioned motor reaction to a flash and the spatial distribution of EEG correlation coefficients of eight cerebral areas in 10-second epoch preceding the stimuli. The greatest similarity of latency variations was observed with changes in the correlation relationships between EEG of the occipital, frontal and central areas of the hemisphere, contralateral to the reacting hand. Analysis of the structure of the brain biopotential field has shown that the probability of a more rapid reaction is greater if in the pre-stimulatory period there is a spatially coherent alpha-rhythm with nearly contraphasic correlations of oscillations in the frontal and occipital brain areas.
D001921:Brain / Q000502:physiology*; D001931:Brain Mapping; D004569:Electroencephalography; D006801:Humans; D011930:Reaction Time / Q000502:physiology*
Struktura polia biopotentsialov mozga i latentnyĭ period dvigatel'noĭ reaktsii chekoveka.