Early attentional processes distinguish selective from global motor inhibitory control: An electrical neuroimaging study

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Serval ID
serval:BIB_D906A365DBA7
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Early attentional processes distinguish selective from global motor inhibitory control: An electrical neuroimaging study
Journal
NeuroImage
Author(s)
Sallard Etienne, Barral Jérôme, Chavan Camille, Spierer Lucas
ISSN
1053-8119
Publication state
Published
Issued date
02/2014
Volume
87
Pages
183-189
Language
english
Abstract
The rapid stopping of specific parts of movements is frequently required in daily life. Yet, whether selective inhibitory control of movements is mediated by a specific neural pathway or by the combination between a global stopping of all ongoing motor activity followed by the re-initiation of taskrelevant movements remains unclear. To address this question, we applied time-wise statistical analyses of the topography, global field power and electrical sources of the event-related potentials to the global vs selective inhibition stimuli presented during a Go/NoGo task. Participants (n= 18) had to respond as fast as possible with their two hands to Go stimuli and to withhold the response from the two hands (global inhibition conditions, GNG) or from only one hand (selective inhibition, SNG) when specific NoGo stimuli were presented. Behaviorally, we replicated previous evidence for slower response times in the SNG than in the Go condition. Electrophysiologically, there were two distinct phases of event-related potentials modulations between the GNG and the SNG conditions. At 110-150ms post-stimulus onset, there was a difference in the strength of the electric field without concomitant topographic modulation, indicating the differential engagement of statistically indistinguishable configurations of neural generators for selective and global inhibitory control. At 150-200ms, there was topographic modulation, indicating the engagement of distinct brain networks. Source estimations localized these effects within bilateral temporo-parieto-occipital and within parieto-central networks, respectively. Our results suggest that while both types of motor inhibitory control depend on global stopping mechanisms, selective and global inhibition still differ quantitatively at early attention-related processing phases.
Keywords
Inhibitory control, selective inhibition, Electrical neuroimaging, EEG topography, electrical sources
Pubmed
Create date
25/11/2013 12:42
Last modification date
22/01/2020 7:19
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