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Phase-amplitude coupling between theta and gamma oscillations during nociception in rat electroencephalogram.
MedLine Citation:
PMID:  21640788     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
In electroencephalogram (EEG) study, gamma oscillations were reported to participate in pain processing; theta oscillations were also involved in pain processing. Moreover, theta always modulated gamma activity by phase-amplitude coupling in event-related oscillations. Whether theta modulate gamma by phase-amplitude coupling in pain processing is of interest. In the present study, using EEG of rats after laser nociceptive stimulation, we investigated gamma activity and phase-amplitude coupling between theta and gamma. It was found that induced gamma power increased starting 200ms after nociceptive stimulation onset. Moreover, significant coupling between theta phase and gamma amplitude was found over frontal and parietal region after nociceptive stimulation. Our results for the first time suggest that coupling between theta and gamma is involved in nociception processing.
Authors:
Jing Wang; Duan Li; Xiaoli Li; Feng-Yu Liu; Guo-Gang Xing; Jie Cai; You Wan
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-5-26
Journal Detail:
Title:  Neuroscience letters     Volume:  -     ISSN:  1872-7972     ISO Abbreviation:  -     Publication Date:  2011 May 
Date Detail:
Created Date:  2011-6-6     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7600130     Medline TA:  Neurosci Lett     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011. Published by Elsevier Ireland Ltd.
Affiliation:
Neuroscience Research Institute, Department of Neurobiology, Peking University, Beijing 100191, China.
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