Oscillatory brain activity in working memory

The contribution of gamma and beta-rhythms in working (WM), dynamics of retaining traces of memory on a delay interval and definition of brain structures involved in processes of (WM) was studied by the new method of the micro structural analysis for event=related oscillatory brain activity. Research is carried out on 8 subjects who has to retain four different double-digit in five seconds delay for the subsequent comparison with target and no=target stimuli and the performing of motor reaction. Retaining traces of memory has intermittent character and on a delay interval is presented by periodic flashes in activity of frequency=selective gamma and beta generators in prefrontal, associative, visual cortex and cerebellum with the leading role of prefrontal cortex. Joint activity of local brain structures is provided with the frequency-selective generators working both on different frequencies, and on the common frequency.