説明
Publisher Summary This chapter discusses the relationship between activity of respiratory center and Electroencephalography (EEG). The EEG, electrical activity of the phrenic nerve and blood pressure were recorded simultaneously in cats immobilized with D-tubocurarine chloride under artificial respiration. The EEGs were recorded using bipolar electrodes from the anterior sigmoid gyrus, suprasylvian gyrus, caudate, preoptic area, amygdala, lateral hypothalamic nucleus, thalamic centre median, hippocampus, and midbrain reticular formation. In order to exclude the effects of ascending impulses on the reticular formation, the spinal cord was transected at the level of C6–C7, or the carotid body was denervated. In all cases, cessation of artificial respiration caused an arousal reaction in the EEG pattern of the neocortex and hippocampus. The periodic change in the EEG might possess a closer relationship with some of these activities than with the phrenic volley. It is found that the periodic EEG fluctuation of the neocortex did not occur in the same phase, as did the phrenic volley.