The time course of exogenous and endogenous control of covert attention

Studies of eye-movements and manual response have established that rapid overt selection is largely exogenously driven toward salient stimuli, whereas slower selection is largely endogenously driven to relevant objects. We use the N2pc, an event-related potential index of covert attention, to demons...

Descripción completa

Detalles Bibliográficos
Autores principales: Hickey, Clayton, van Zoest, Wieske, Theeuwes, Jan
Formato: Texto
Lenguaje:English
Publicado: Springer-Verlag 2009
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2839488/
https://www.ncbi.nlm.nih.gov/pubmed/19940982
http://dx.doi.org/10.1007/s00221-009-2094-9
_version_ 1782178951666335744
author Hickey, Clayton
van Zoest, Wieske
Theeuwes, Jan
author_facet Hickey, Clayton
van Zoest, Wieske
Theeuwes, Jan
author_sort Hickey, Clayton
collection PubMed
description Studies of eye-movements and manual response have established that rapid overt selection is largely exogenously driven toward salient stimuli, whereas slower selection is largely endogenously driven to relevant objects. We use the N2pc, an event-related potential index of covert attention, to demonstrate that this time course reflects an underlying pattern in the deployment of covert attention. We find that shifts of attention that occur soon after the onset of a visual search array are directed toward salient, task-irrelevant visual stimuli and are associated with slow responses to the target. In contrast, slower shifts are target-directed and are associated with fast responses. The time course of exogenous and endogenous control provides a framework in which some inconsistent results in the capture literature might be reconciled; capture may occur when attention is rapidly deployed.
format Text
id pubmed-2839488
institution National Center for Biotechnology Information
language English
publishDate 2009
publisher Springer-Verlag
record_format MEDLINE/PubMed
spelling pubmed-28394882010-03-26 The time course of exogenous and endogenous control of covert attention Hickey, Clayton van Zoest, Wieske Theeuwes, Jan Exp Brain Res Research Article Studies of eye-movements and manual response have established that rapid overt selection is largely exogenously driven toward salient stimuli, whereas slower selection is largely endogenously driven to relevant objects. We use the N2pc, an event-related potential index of covert attention, to demonstrate that this time course reflects an underlying pattern in the deployment of covert attention. We find that shifts of attention that occur soon after the onset of a visual search array are directed toward salient, task-irrelevant visual stimuli and are associated with slow responses to the target. In contrast, slower shifts are target-directed and are associated with fast responses. The time course of exogenous and endogenous control provides a framework in which some inconsistent results in the capture literature might be reconciled; capture may occur when attention is rapidly deployed. Springer-Verlag 2009-11-26 2010 /pmc/articles/PMC2839488/ /pubmed/19940982 http://dx.doi.org/10.1007/s00221-009-2094-9 Text en © The Author(s) 2009 https://creativecommons.org/licenses/by-nc/4.0/ This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.
spellingShingle Research Article
Hickey, Clayton
van Zoest, Wieske
Theeuwes, Jan
The time course of exogenous and endogenous control of covert attention
title The time course of exogenous and endogenous control of covert attention
title_full The time course of exogenous and endogenous control of covert attention
title_fullStr The time course of exogenous and endogenous control of covert attention
title_full_unstemmed The time course of exogenous and endogenous control of covert attention
title_short The time course of exogenous and endogenous control of covert attention
title_sort time course of exogenous and endogenous control of covert attention
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2839488/
https://www.ncbi.nlm.nih.gov/pubmed/19940982
http://dx.doi.org/10.1007/s00221-009-2094-9
work_keys_str_mv AT hickeyclayton thetimecourseofexogenousandendogenouscontrolofcovertattention
AT vanzoestwieske thetimecourseofexogenousandendogenouscontrolofcovertattention
AT theeuwesjan thetimecourseofexogenousandendogenouscontrolofcovertattention
AT hickeyclayton timecourseofexogenousandendogenouscontrolofcovertattention
AT vanzoestwieske timecourseofexogenousandendogenouscontrolofcovertattention
AT theeuwesjan timecourseofexogenousandendogenouscontrolofcovertattention