it was shown that in the patients with the vegetovascular crises the functioning of the activating nonspecific brain systems was intensified : this manifested itself in a lowering of the alpha-index on the eeg taken during awakeness , a delay of the orientation reaction , a shortening of the sleep duration , a diminution of the representation of the deep stages of the slow sleep , an acceleration of the heartbeat rate in all the functional states of the brain .
C0029266
orientation
C0006104
brain