Dimensional complexity of the EEG in patients with posttraumatic stress disorder

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dc.contributor.authorJeong, Jaeseungko
dc.contributor.authorPeterson, BSko
dc.contributor.authorKim, DJko
dc.contributor.authorBahk, WMko
dc.contributor.authorJun, TYko
dc.contributor.authorKim, Soo Yongko
dc.contributor.authorKim, KSko
dc.contributor.authorChae, JHko
dc.date.accessioned2010-12-29T01:46:53Z-
dc.date.available2010-12-29T01:46:53Z-
dc.date.created2012-02-06-
dc.date.created2012-02-06-
dc.date.issued2004-05-
dc.identifier.citationPSYCHIATRY RESEARCH-NEUROIMAGING, v.131, pp.79 - 89-
dc.identifier.issn0925-4927-
dc.identifier.urihttp://hdl.handle.net/10203/21283-
dc.description.abstractRecent electrophysiological studies have reported evidence of information processing abnormalities in patients with posttraumatic stress disorder (PTSD). The aim of this study is to examine dynamical complexity of the EEG in PTSD patients, which is thought to reflect information processing of the brain. Resting EEG recordings (32 800 data points acquired continuously from 82 s of an EEG record) were obtained in 16 channels of 27 patients with PTSD from a mixed civilian trauma population and 14 healthy subjects. The correlation dimension (D-2) of the EEG was used to quantify the complexity of the cortical dynamics underlying the EEG signal. The PTSD patients were found to have lower D-2 values than those of the healthy subjects in most channels (Fp1, F8, C4, P4, T3, T4, T5, T6, and O1), indicating that PTSD patients have globally reduced complexity in their EEG waveforms. This study supports the hypotheses that PTSD patients exhibit disturbed cortical information processing, and that non-linear dynamical analysis of the EEG can be a tool for detecting changes in neurodynamics of the brain in PTSD. (C) 2004 Elsevier Ireland Ltd. All rights reserved.-
dc.description.sponsorshipThis study was supported by the Creative Research Initiatives ofthe Korean Ministry of Science and Technology (J.J.).en
dc.languageEnglish-
dc.language.isoen_USen
dc.publisherELSEVIER IRELAND LTD-
dc.subjectPOSITRON-EMISSION-TOMOGRAPHY-
dc.subjectOPTIMAL EMBEDDING DIMENSION-
dc.subjectSCRIPT-DRIVEN IMAGERY-
dc.subjectCEREBRAL-BLOOD-FLOW-
dc.subjectALZHEIMERS-DISEASE-
dc.subjectTIME-SERIES-
dc.subjectCOMBAT VETERANS-
dc.subjectSYMPTOM PROVOCATION-
dc.subjectSTRANGE ATTRACTORS-
dc.subjectMUTUAL INFORMATION-
dc.titleDimensional complexity of the EEG in patients with posttraumatic stress disorder-
dc.typeArticle-
dc.identifier.wosid000222852900008-
dc.identifier.scopusid2-s2.0-3142552762-
dc.type.rimsART-
dc.citation.volume131-
dc.citation.beginningpage79-
dc.citation.endingpage89-
dc.citation.publicationnamePSYCHIATRY RESEARCH-NEUROIMAGING-
dc.embargo.liftdate9999-12-31-
dc.embargo.terms9999-12-31-
dc.contributor.localauthorJeong, Jaeseung-
dc.contributor.localauthorKim, Soo Yong-
dc.contributor.nonIdAuthorPeterson, BS-
dc.contributor.nonIdAuthorKim, DJ-
dc.contributor.nonIdAuthorBahk, WM-
dc.contributor.nonIdAuthorJun, TY-
dc.contributor.nonIdAuthorKim, KS-
dc.contributor.nonIdAuthorChae, JH-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorposttraumatic stress disorder-
dc.subject.keywordAuthorelectroencephalography-
dc.subject.keywordAuthordimensional complexity-
dc.subject.keywordAuthornon-linear dynamical analysis-
dc.subject.keywordAuthorinformation processing-
dc.subject.keywordPlusPOSITRON-EMISSION-TOMOGRAPHY-
dc.subject.keywordPlusOPTIMAL EMBEDDING DIMENSION-
dc.subject.keywordPlusSCRIPT-DRIVEN IMAGERY-
dc.subject.keywordPlusCEREBRAL-BLOOD-FLOW-
dc.subject.keywordPlusALZHEIMERS-DISEASE-
dc.subject.keywordPlusTIME-SERIES-
dc.subject.keywordPlusCOMBAT VETERANS-
dc.subject.keywordPlusSYMPTOM PROVOCATION-
dc.subject.keywordPlusSTRANGE ATTRACTORS-
dc.subject.keywordPlusMUTUAL INFORMATION-
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