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Journal of Applied Physiology, Vol 55, Issue 4 1361-1364, Copyright © 1983 by American Physiological Society
ARTICLES |
S. Ioffe, A. H. Jansen and V. Chernick
A technique for chronic extracellular recording of neuronal activity in the medullary region of fetal sheep during different sleep states is described. Of 51 recorded neurones, 54% were associated with respiration, blood pressure changes, or muscle electromyograms, and 46% were nonspecific. During apnea (nonrapid-eye-movement sleep) both inspiratory and expiratory neurons had random intermittent activity. Thus apnea is not associated with tonic expiratory neuronal activity.
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