How salience enhances inhibitory control: An analysis of electro-cortical mechanisms.

Autor: Kenemans JL; Department of Experimental Psychology, Helmholtz Institute, Utrecht University, the Netherlands. Electronic address: j.l.kenemans@uu.nl., Schutte I; Department of Experimental Psychology, Helmholtz Institute, Utrecht University, the Netherlands., Van Bijnen S; Department of Experimental Psychology, Helmholtz Institute, Utrecht University, the Netherlands; Centre for Interdisciplinary Brain Research, Department of Psychology, University of Jyväskylä, Finland., Logemann HNA; Department of Experimental Psychology, Helmholtz Institute, Utrecht University, the Netherlands; Institute of Psychology, ELTE, Eötvös Loránd University, Budapest, Hungary.
Jazyk: angličtina
Zdroj: Biological psychology [Biol Psychol] 2023 Feb; Vol. 177, pp. 108505. Date of Electronic Publication: 2023 Jan 18.
DOI: 10.1016/j.biopsycho.2023.108505
Abstrakt: Stop-signal tasks (SSTs) combined with human electro-cortical recordings (Event-Related Potentials, ERPs) have revealed mechanisms associated with successful stopping (relative to failed), presumably contributing to inhibitory control. The corresponding ERP signatures have been labeled stop N1 (+/- 100-ms latency), stop N2 (200 ms), and stop P3 (160-250 ms), and argued to reflect more sensory-specific (N1) versus more generic (N2, P3) mechanisms. However, stop N1 and stop N2, as well as latencies of stop-P3, appear to be quite inconsistent across studies. The present work addressed the possible influence of stop-signal salience, expecting high salience to induce clear stop N1s but reduced stop N2s, and short-latency stop P3s. Three SST varieties were combined with high-resolution EEG. An imperative visual (go) stimulus was occasionally followed by a subsequent (stop) stimulus that signalled to withhold the just initiated response. Stop-Signal Reaction Times (SSRTs) decreased linearly from visual-low to visual-high-salience to auditory. Auditory Stop N1 was replicated. A C1-like visual evoked potential (latency < 100 ms) was observed only with high salience, but not robustly associated with successful versus failed stops. Using the successful-failed contrast a visual stop-N1 analogue (112-156 ms post-stop-signal) was identified, as was right-frontal stop N2, but neither was sensitive to salience. Stop P3 had shorter latency for high than for low salience, and the extent of the early high-salience stop P3 correlated inversely with SSRT. These results suggest that salience-enhanced inhibitory control as manifest in SSRTs is associated with generic rather than sensory-specific electrocortical mechanisms.
(Copyright © 2023 The Authors. Published by Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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