DIAGNOSTICS CRITERIA OF FUNCTIONAL HEMISPHERIC ASYMMETRY

The aim of the article is to develop diagnostics criteria of functional hemispheric asymmetry using cognitive evoked potentials. Apparently healthy volunteers of both gender aged 20-40 were studied (100 right-handed and 100 left-handed). Cognitive evoked potentials were registered in multifunctional computer complex Neuro-MEP (Ivanovo, Russia) according to the methodology, developed and patented by the authors. The formulas for calculation of implic-it time index Р300 with the analysis of each hemisphere were first developed for diagnostics of functional hemispheric asymmetry. Significant differences were revealed between right-handed and left-handed on the indices of implicit time and endogenic wave amplitude Р300 which are more in dominant hemisphere (right-handed have these indices in the left hemisphere, while left-handed in the right hemisphere).