SPECTRAL-CORRELATION ANALYSIS OF THE RABB ITS BRAIN ELECTRICAL-ACTIVITY AT ORGANIZATION OF GOAL-DIRECTED BLINKING REACTION

At organization of the blinking reaction directed to a cessation of th e motivational hunger dominant the spectral power of biopotentials of the frontal, sensorimotor cortical areas and the blinking cortical cen tres of both eyes, VMH and LH increases in the range of the delta- and theta-frequencies. Coherence (Coh) of electrical activity of the fron tal and sensorimotor cortical areas increases, Coh between potentials of the swallowing cortical area and the blinking cortical zones corres ponding to the trained and non-trained eves is being asymmetrically re constructed. Coh function of the electrical activity of the LH, VMH an d potentials of different cortical areas changes uniformly. Coh of ele ctrical activity of the VMH and LH, N(III) and MPO increases in the wh ole analysed frequency range, Coh between potentials of the MPO and LP O, LPO and VMH increases in the delta- and decreases in the theta- and alpha-frequency ranges. It is suggested that in the process of prepar ation of the goal-directed reaction all the cerebral cortex areas and subcortical structures under study related to alimentary motivation an d the blinking function are involved into the dominant constellation.