Abstract：
:A correlated intracellular and extracellular study of lumbar motoneuron excitability during sleep and wakefulness was performed in the chronic, unanesthetized, undrugged, normally respiring cat. Experiments were designed to reveal the extent to which hypotonia during active sleep in mammals is dependent on postsynaptic inhibition of somatic motoneurons. Variations in the antidromic field potential, antidromic and orthodromic spike, EPSP, membrane input resistance and rheobasic current were studied. No change in motoneuron excitability occurred when quiet wakefulness was compared to quiet sleep. A decrease in excitability was present, due to postsynaptic inhibition, during active sleep. Further phasic decreases in excitability, also due to postsynaptic inhibition, occurred during active sleep in conjunction with clusters of rapid eye movements.
journal_name
Brain Resjournal_title
Brain researchauthors
Morales F,Chase MHdoi
10.1016/0006-8993(81)90836-2subject
Has Abstractpub_date
1981-11-30 00:00:00pages
279-95issue
2eissn
0006-8993issn
1872-6240pii
0006-8993(81)90836-2journal_volume
225pub_type
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