COMPLEX PET AND ELECTROPHYSIOLOGICAL STUD IES OF HUMAN THINKING ACTIVITY

Recent studies of a group of researchers from the Institute of Human B rain (St.Petersburg), concerning the role of the distributed brain sys tems in different kinds of perceptual and cognitive acts, are reviewed in this paper. Principally different approaches were used, i. e., ele ctrophysiological (multi-unit record with implanted electrodes) and po sitron emission tomography (PET). Possibility and benefit of applicati on of the combined analysis of these different sets of data in order t o obtain more detailed information on the work of the brain systems ar e discussed. On the basis of some examples of such a combined analysis the authors conclude that such a combined approach is the optimal way to reach a deeper insight into the anatomical-functional organization of the human brain.