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dc.contributor.authorLin, Chin-Tengen_US
dc.contributor.authorHuang, Kuan-Chihen_US
dc.contributor.authorChao, Chih-Fengen_US
dc.contributor.authorChen, Jian-Annen_US
dc.contributor.authorChiu, Tzai-Wenen_US
dc.contributor.authorKo, Li-Weien_US
dc.contributor.authorJung, Tzyy-Pingen_US
dc.date.accessioned2014-12-08T15:48:29Z-
dc.date.available2014-12-08T15:48:29Z-
dc.date.issued2010-08-15en_US
dc.identifier.issn1053-8119en_US
dc.identifier.urihttp://dx.doi.org/10.1016/j.neuroimage.2010.04.250en_US
dc.identifier.urihttp://hdl.handle.net/11536/32294-
dc.description.abstractThis study investigates brain dynamics and behavioral changes in response to arousing auditory signals presented to individuals experiencing momentary cognitive lapses during a sustained-attention task. Electroencephalographic (EEG) and behavioral data were simultaneously collected during virtual-reality (VR) based driving experiments, in which subjects were instructed to maintain their cruising position and compensate for randomly induced lane deviations using the steering wheel. 30-channel EEG data were analyzed by independent component analysis and the short-time Fourier transform. Across subjects and sessions, intermittent performance during drowsiness was accompanied by characteristic spectral augmentation or suppression in the alpha- and theta-band spectra of a bilateral occipital component, corresponding to brief periods of normal (wakeful) and hypnagogic (sleeping) awareness and behavior. Arousing auditory feedback was delivered to the subjects in half of the non-responded lane-deviation events, which immediately agitated subject's responses to the events. The improved behavioral performance was accompanied by concurrent spectral suppression in the theta- and alpha-bands of the bilateral occipital component. The effects of auditory feedback on spectral changes lasted 30 s or longer. The results of this study demonstrate the amount of cognitive state information that can be extracted from noninvasively recorded EEG data and the feasibility of online assessment and rectification of brain networks exhibiting characteristic dynamic patterns in response to momentary cognitive challenges. (C) 2010 Elsevier Inc. All rights reserved.en_US
dc.language.isoen_USen_US
dc.subjectEEGen_US
dc.subjectDrowsinessen_US
dc.subjectAuditory Feedbacken_US
dc.subjectBrain dynamicsen_US
dc.subjectDriving safetyen_US
dc.subjectIndependent component analysis (ICA)en_US
dc.titleTonic and phasic EEG and behavioral changes induced by arousing feedbacken_US
dc.typeArticleen_US
dc.identifier.doi10.1016/j.neuroimage.2010.04.250en_US
dc.identifier.journalNEUROIMAGEen_US
dc.citation.volume52en_US
dc.citation.issue2en_US
dc.citation.spage633en_US
dc.citation.epage642en_US
dc.contributor.department生物科技學系zh_TW
dc.contributor.department電控工程研究所zh_TW
dc.contributor.departmentDepartment of Biological Science and Technologyen_US
dc.contributor.departmentInstitute of Electrical and Control Engineeringen_US
dc.identifier.wosnumberWOS:000279160200025-
dc.citation.woscount20-
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