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dc.contributor.authorMin, Byoung-Kyong
dc.contributor.authorPark, Hae-Jeong
dc.date.accessioned2011-04-27T00:46:49Z
dc.date.issued2010
dc.identifier.citationMin, Byoung-Kyong, and Hae-Jeong Park. 2010. Task-related modulation of anterior theta and posterior alpha EEG reflects top-down preparation. BMC Neuroscience 11: 79.en_US
dc.identifier.issn1471-2202en_US
dc.identifier.urihttp://nrs.harvard.edu/urn-3:HUL.InstRepos:4878057
dc.description.abstractBackground: Prestimulus EEG alpha activity in humans has been considered to reflect ongoing top-down preparation for the performance of subsequent tasks. Since theta oscillations may be related to poststimulus top-down processing, we investigated whether prestimulus EEG theta activity also reflects top-down cognitive preparation for a stimulus. Results: We recorded EEG data from 15 healthy controls performing a color and shape discrimination task, and used the wavelet transformation to investigate the time course and power of oscillatory activity in the signals. We observed a relationship between both anterior theta and posterior alpha power in the prestimulus period and the type of subsequent task. Conclusions: Since task-differences were reflected in both theta and alpha activities prior to stimulus onset, both prestimulus theta (particularly around the anterior region) and prestimulus alpha (particularly around the posterior region) activities may reflect prestimulus top-down preparation for the performance of subsequent tasks.en_US
dc.language.isoen_USen_US
dc.publisherBioMed Centralen_US
dc.relation.isversionofdoi:10.1186/1471-2202-11-79en_US
dc.relation.hasversionhttp://www.ncbi.nlm.nih.gov/pmc/articles/PMC2906487/pdf/en_US
dash.licenseLAA
dc.titleTask-Related Modulation of Anterior Theta and Posterior Alpha EEG Reflects Top-Down Preparationen_US
dc.typeJournal Articleen_US
dc.description.versionVersion of Recorden_US
dc.relation.journalBMC Neuroscienceen_US
dash.depositing.authorMin, Byoung-Kyong
dc.date.available2011-04-27T00:46:49Z
dash.affiliation.otherHMS^Radiology-Brigham and Women's Hospitalen_US
dc.identifier.doi10.1186/1471-2202-11-79*
dash.contributor.affiliatedMin, Byoung-Kyong


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