[Cognizable and uncognizable information in human cognitive activity].

In the paper are considered the questions on the interaction of realized and unrealized information as well as the means of its processing during cognitive activity of a man. The results of investigations carried out and analysis of the data from the literature testify that the use of unrealized information is an important condition for non-standard task solving. It is provided by a cooperative activity of both hemispheres being manifested electrophysiologically as an activation of the "cognitive axis" (i.e. the foci of increased potentials' synchronization in the rostral areas of the left hemisphere and the caudal areas of the right one, revealed by means of topographic mapping of electrical processes recorded from 48 cortical points). Some cognitive styles were shown to play an important role in the organization of cooperative activity of the hemispheres at the individual level. Combination of a high synthetizing ability with a flexibility of the cognitive control provides a possibility of successful change from the work under the standard conditions to that in the non-standard situations. At the high indices of searching, intuitional activity as well as extrasensory stimuli perception the "cognitive axis" with the dominance of the focus in the right hemisphere is more expressed than that at the low indices of efficiency of the activity.