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  Effects of EEG-vigilance regulation patterns on early perceptual processes in human visual cortex

Bekhtereva, V., Sander, C., Forschack, N., Olbrich, S., Hegerl, U., & Müller, M. M. (2014). Effects of EEG-vigilance regulation patterns on early perceptual processes in human visual cortex. Clinical Neurophysiology, 125(1), 98-107. doi:10.1016/j.clinph.2013.06.019.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0014-5AFE-8 Version Permalink: http://hdl.handle.net/21.11116/0000-0003-81F0-B
Genre: Journal Article

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 Creators:
Bekhtereva, Valeria1, Author
Sander, Christian2, Author
Forschack, Norman1, Author              
Olbrich, Sebastian2, Author
Hegerl, Ulrich2, Author
Müller, Matthias M.1, Author
Affiliations:
1Institute of Psychology, University of Leipzig, Germany, ou_persistent22              
2Department of Psychiatry, University of Leipzig, Germany, ou_persistent22              

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Free keywords: EEG-vigilance regulation pattern; Human EEG; Steady-state visual evoked potential (SSVEP); Sustained visual attention
 Abstract: Objective To investigate influences of EEG-vigilance regulation patterns on perceptual processing during sustained visual attention in early visual areas. Methods We compared a subject group with stable vigilance regulation to a group with unstable EEG-vigilance regulation. A rapid serial visual presentation stream (RSVP) elicited a 7.5 Hz steady state visual evoked potential (SSVEP), a continuous sinusoidal brain response as a measure of attentional resource allocation during sustained attention in early visual cortex. Subjects performed a target discrimination task. 150 trials were divided into two parts (75 trials each, trial duration: 11 s). Results A significant interaction vigilance group by experimental part provided significantly greater SSVEP amplitudes for the unstable group in the second compared to the first part of the experiment. Both groups showed training effects with increased hit rates and d′-values in the second part of the experiment. Conclusions The unexpected finding of SSVEP amplitude increase for the unstable group might be due to competitive interactions for neural resources between the alpha response and SSVEPs. Significance Individual patterns of EEG-vigilance regulation have a moderate impact on early sensory processing during sustained visual attention that is not paralleled in task performance.

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Language(s): eng - English
 Dates: 2013-06-212013-07-182014-01
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1016/j.clinph.2013.06.019
PMID: 23871178
Other: Epub 2013
 Degree: -

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Title: Clinical Neurophysiology
  Other : Clin. Neurophysiol.
Source Genre: Journal
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Publ. Info: Amsterdam : Elsevier
Pages: - Volume / Issue: 125 (1) Sequence Number: - Start / End Page: 98 - 107 Identifier: ISSN: 1388-2457
CoNE: /journals/resource/954926941726