Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.neuroimage.2009.08.067
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dc.titleSleep deprivation and its effects on object-selective attention
dc.contributor.authorChee, M.W.L.
dc.contributor.authorTan, J.C.
dc.contributor.authorParimal, S.
dc.contributor.authorZagorodnov, V.
dc.date.accessioned2014-11-26T08:30:31Z
dc.date.available2014-11-26T08:30:31Z
dc.date.issued2010-01-15
dc.identifier.citationChee, M.W.L., Tan, J.C., Parimal, S., Zagorodnov, V. (2010-01-15). Sleep deprivation and its effects on object-selective attention. NeuroImage 49 (2) : 1903-1910. ScholarBank@NUS Repository. https://doi.org/10.1016/j.neuroimage.2009.08.067
dc.identifier.issn10538119
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/110273
dc.description.abstractSleep deprivation (SD) affects attention but it is an open question as to whether all subtypes of attention are similarly affected. We investigated the effects of 24 h of total SD on object-selective attention. 26 healthy, young adults viewed quartets of alternating faces or place scenes and performed selective judgments on faces only, scenes only or both faces and scenes. Volunteers underwent fMRI following a normal night of sleep and again following approximately 24 h of total sleep deprivation in a counterbalanced fashion. Sleep deprivation resulted in slower and less accurate picture classification as well as poorer recognition memory for scenes. Attention strongly modulated activation in the Parahippocampal Place Area (PPA). Task-related activation in the fronto-parietal cortex and PPA was reduced in SD, but the relative modulation of PPA activation by attention was preserved. Psychophysiological interaction between the left intra-parietal sulcus and the PPA that was clearly present after a normal night of sleep was reduced below threshold following SD suggesting that PPI may be a more sensitive method of detecting change in selective attention. Sleep deprivation may affect object-selective attention in addition to exerting a task-independent deficit in attention. © 2009 Elsevier Inc. All rights reserved.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/j.neuroimage.2009.08.067
dc.sourceScopus
dc.typeArticle
dc.contributor.departmentDUKE-NUS GRADUATE MEDICAL SCHOOL S'PORE
dc.description.doi10.1016/j.neuroimage.2009.08.067
dc.description.sourcetitleNeuroImage
dc.description.volume49
dc.description.issue2
dc.description.page1903-1910
dc.description.codenNEIME
dc.identifier.isiut000272808400074
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