Bulbar Control of Cortical Arousal

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Science  14 Apr 1961:
Vol. 133, Issue 3459, pp. 1133-1134
DOI: 10.1126/science.133.3459.1133


In the cat, the cortical arousal induced by reticular or nociceptive stimulation is more intense and more long-lasting after elimination of the caudal and medial part of the medulla than in preparations with intact brain. This difference is explained by the intervention of a phasic-ascending inhibitory bulbar control secondarily triggered by the mesencephalic activating system.