Document Detail

Spectral power of human limbic evoked potentials: relationship to seizure onset.
MedLine Citation:
PMID:  3377437     Owner:  NLM     Status:  MEDLINE    
Limbic evoked potentials were recorded from intracerebral electrodes bilaterally implanted in the hippocampi of 16 epileptic patients undergoing evaluation for surgical resection of a seizure focus. Spectral analysis of the limbic evoked potentials revealed consistently lower spectral power of both low-band (1-12.6 Hz) and high-band (13-20 Hz) components recorded form the hippocampus that was associated with the electrographically confirmed seizure focus as compared to the contralateral side. Limbic evoked potential recordings appear to be useful in the determination of a focal functional deficit and thus in identifying the site of epileptogenic pathology. Further, the results support the hypothesis of a local generator for limbic evoked potentials and demonstrate that limbic evoked potentials in humans include not only low-frequency, high-amplitude electric field changes, but also a high-frequency component.
K J Meador; D W Loring; D W King; B B Gallagher; O L Rogers; J R Smith; H F Flanigin
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Annals of neurology     Volume:  23     ISSN:  0364-5134     ISO Abbreviation:  Ann. Neurol.     Publication Date:  1988 Feb 
Date Detail:
Created Date:  1988-07-14     Completed Date:  1988-07-14     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  7707449     Medline TA:  Ann Neurol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  145-51     Citation Subset:  IM    
Department of Neurology, Medical College of Georgia, Augusta 30912.
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MeSH Terms
Amygdala / physiopathology
Epilepsy / physiopathology*,  psychology
Evoked Potentials, Auditory*
Hippocampus / physiopathology
Intelligence Tests
Limbic System / physiopathology*
Middle Aged
Neuropsychological Tests
Grant Support
1-K08-AG00314/AG/NIA NIH HHS

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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