STUDIES IN EXPERIMENTAL EXHAUSTION DUE TO LACK OF SLEEP

Abstract

In rabbits exhausted by lack of sleep, chromatolytic cells were constantly found in the reticu-lar formation, commissural nucleus of the solitarius, and dorsal nucleus of the vagus. Chromatolysis occurs and is characterized by granular Nissl bodies, vacuoliza-tion of the cytoplasm, and intensified staining of the nucleus, particularly around the nucleolus. Cells of the hypoglossal nucleus and all motor nerve cells supplying somatic musculature show no chromatolysis or other changes as a result of exhaustion due to lack of sleep. [See also Entry 1905.].