JN Fuel your research with LabChart
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

J Neurophysiol 68: 109-116, 1992;
0022-3077/92 $5.00
This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Lopez-Rodriguez, F.
Right arrow Articles by Morales, F. R.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Lopez-Rodriguez, F.
Right arrow Articles by Morales, F. R.

Journal of Neurophysiology, Vol 68, Issue 1 109-116, Copyright © 1992 by APS

ARTICLES

PGO-related potentials in lumbar motoneurons during active sleep

F. Lopez-Rodriguez, M. H. Chase and F. R. Morales
Department of Physiology, School of Medicine, University of California, Los Angeles 90024.

1. The present report describes the relationship that occurs during active sleep between ponto-geniculo-occipital (PGO) waves and changes in spinal cord motoneuron membrane potential. 2. These changes were characterized by the appearance of a complex pattern of motoneuron hyperpolarizing potentials, with a duration of approximately 300 ms, that were centered around the PGO wave. The first hyperpolarizing potential began before the onset of the PGO wave. Emerging from this hyperpolarizing potential was a second, larger-amplitude hyperpolarizing potential; it was followed by a succession of smaller-amplitude hyperpolarizations. 3. All potentials were present in conjunction with PGO waves during active sleep, but they were observed only in some motoneurons when PGO waves occurred during the transition period from quiet sleep to active sleep. 4. The potentials were reversed by chloride, demonstrating that they were inhibitory postsynaptic potentials (IPSPs). 5. These data, combined with the fact that these PGO-related IPSPs are blocked by strychnine, support the hypothesis that they are the result of the phasic enhancement of the activity of the same system that inhibits motoneurons during active sleep.


This article has been cited by other articles:


Home page
 J. Neurosci.Home page
P. L. Brooks and J. H. Peever
Glycinergic and GABAA-Mediated Inhibition of Somatic Motoneurons Does Not Mediate Rapid Eye Movement Sleep Motor Atonia
J. Neurosci., April 2, 2008; 28(14): 3535 - 3545.
[Abstract] [Full Text] [PDF]

Home page
 J. Neurophysiol.Home page
M.-C. Xi, S. J. Fung, J. Yamuy, F. R. Morales, and M. H. Chase
Induction of Active (REM) Sleep and Motor Inhibition by Hypocretin in the Nucleus Pontis Oralis of the Cat
J Neurophysiol, June 1, 2002; 87(6): 2880 - 2888.
[Abstract] [Full Text] [PDF]

Home page
 J. Neurophysiol.Home page
J. Kohyama, Y.-Y. Lai, and J. M. Siegel
Reticulospinal Systems Mediate Atonia With Short and Long Latencies
J Neurophysiol, October 1, 1998; 80(4): 1839 - 1851.
[Abstract] [Full Text] [PDF]

Home page
 J. Neurophysiol.Home page
K. A. Kohlmeier, F. Lopez-Rodriguez, F. R. Morales, and M. H. Chase
Relationship Between Sensory Stimuli-Elicited IPSPs in Motoneurons and PGO Waves During Cholinergically Induced Muscle Atonia
J Neurophysiol, October 1, 1997; 78(4): 2145 - 2155.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Visit Other APS Journals Online