[Dynamics of spatial synchronization of brain biopotentials in intensive attention during hypnotic state]

Twelve psychiatrically normal women aged 21-38 years were examined in awakened and hypnotic state using an EEG method with evaluation of spatial synchronization of brain biopotentials (SSBB). Suggesting of high intensive attention to the subjects in hypnotic state leads to substantial reorganization of SSBB manifesting as SSBB increase between both occipital regions, right temporal and other brain cortex areas. Dynamics of brain SSBB in intensive attention in awakened and hypnotic state is of opposite character that is likely to be the result of temporary switching off of the functions of the frontal brain cortex areas, providing the conscious control and regulation of the current activity.