Please use this identifier to cite or link to this item:
Title: Sleep deprivation reduces the rate of rapid picture processing
Authors: Kong, D.
Asplund, C.L.
Chee, M.W.L. 
Issue Date: 1-May-2014
Citation: Kong, D., Asplund, C.L., Chee, M.W.L. (2014-05-01). Sleep deprivation reduces the rate of rapid picture processing. NeuroImage 91 : 169-176. ScholarBank@NUS Repository.
Abstract: Object recognition becomes impaired at faster presentation rates and here we show the neuroanatomical foci of where this might be exacerbated by sleep deprivation (SD). Twenty healthy human participants were asked to detect a target house in serially presented house pictures that appeared at 1-15. images/s. Temporal response profiles relating fMRI signal magnitude to presentation frequency were derived from task-responsive regions. Following SD, the inverted U-shaped response profile within parahippocampal place area was lower and peaked at a slower presentation rate than when participants slept normally. Contrastingly, SD did not shift the relatively monotonic early visual cortex responses. The intraparietal sulci but not the frontal eye fields or medial frontal region, showed similar shifts in temporal response profiles following SD, suggesting differential contribution of areas mediating attention control towards limiting rapid object processing. As nodes of the default mode network (DMN) continued to show monotonically increasing deactivation at higher presentation frequencies even following SD, the observed state modulations of temporal responses likely represent temporal limitations in object processing as opposed to task disengagement. © 2014 The Authors.
Source Title: NeuroImage
ISSN: 10538119
DOI: 10.1016/j.neuroimage.2014.01.037
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.


checked on Nov 29, 2022


checked on Nov 29, 2022

Page view(s)

checked on Nov 24, 2022

Google ScholarTM



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.