[Possibilities of the metric estimation of gamma activity in human EEG]

A review. Studies in the period of 2009-2011 are discussed, in which a new phenomenon in human EEG was found out, i.e., personal (individual) features ofneocortical gamma activity in parameters such as amplitude, frequency and width of the gamma band. This phenomenon was revealed in induced responses to visual stimuli in people under conditions of repeated research (after different time intervals - hours, weeks, months). The findings suggest the necessity of development of the metric system for assessment of this phenomenon and corresponding estimation of personal features of the gamma band and their stability (reliability), which would allow interindividual differences to be revealed.