The detrimental effects of total sleep deprivation on cognitive function are well documented yet shortened sleep is more prevalent and less understood. Evidence suggests that even modest sleep restriction can result in diminished cognitive function. Error monitoring, a cognitive process relied on to minimize errors, is sensitive to sleep restriction. The current study evaluated error monitoring in short sleepers (i.e. < 7hrs) and mid-range sleepers (i.e. 7 – 9). Fifty-four participants completed one week of sleep/wake assessment via a wrist-worn actigraphy device and sleep diary. An arrow version of the flanker task was used to examine behavioral and electrophysiological indices of error monitoring including accuracy, error awareness (EA), error-related negativity (ERN) and error positivity (Pe). Short sleepers displayed a lower EA rate in comparison to mid-range sleepers, on low conflict trials. Both groups performed with similar accuracy and response times. Because an ERN was not reliable, Pe was not further evaluated. The present study puts forth evidence that shortened sleep can impair subjective EA.
|School:||University of the Sciences in Philadelphia|
|School Location:||United States -- Pennsylvania|
|Source:||MAI 58/05M(E), Masters Abstracts International|
|Keywords:||Cognitive control, Error monitoring, Short sleepers, Sleep|
Copyright in each Dissertation and Thesis is retained by the author. All Rights Reserved
The supplemental file or files you are about to download were provided to ProQuest by the author as part of a
dissertation or thesis. The supplemental files are provided "AS IS" without warranty. ProQuest is not responsible for the
content, format or impact on the supplemental file(s) on our system. in some cases, the file type may be unknown or
may be a .exe file. We recommend caution as you open such files.
Copyright of the original materials contained in the supplemental file is retained by the author and your access to the
supplemental files is subject to the ProQuest Terms and Conditions of use.
Depending on the size of the file(s) you are downloading, the system may take some time to download them. Please be