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The Spatial and Temporal Deployment of Voluntary Attention across the Visual Field

Several studies have addressed the question of the time it takes for attention to shift from one position in space to another. Here we present a behavioural paradigm which offers a direct access to an estimate of voluntary shift time by comparing, in the same task, a situation in which subjects are...

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Detalles Bibliográficos
Autores principales: Ibos, Guilhem, Duhamel, Jean-René, Ben Hamed, Suliann
Formato: Texto
Lenguaje:English
Publicado: Public Library of Science 2009
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2725294/
https://www.ncbi.nlm.nih.gov/pubmed/19696923
http://dx.doi.org/10.1371/journal.pone.0006716
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author Ibos, Guilhem
Duhamel, Jean-René
Ben Hamed, Suliann
author_facet Ibos, Guilhem
Duhamel, Jean-René
Ben Hamed, Suliann
author_sort Ibos, Guilhem
collection PubMed
description Several studies have addressed the question of the time it takes for attention to shift from one position in space to another. Here we present a behavioural paradigm which offers a direct access to an estimate of voluntary shift time by comparing, in the same task, a situation in which subjects are required to re-engage their attention at the same spatial location with a situation in which they need to shift their attention to another location, all other sensory, cognitive and motor parameters being equal. We show that spatial attention takes on average 55 ms to voluntarily shift from one hemifield to the other and 38 ms to shift within the same hemifield. In addition, we show that across and within hemifields attentional processes are different. In particular, attentional spotlight division appears to be more difficult to operate within than across hemifields.
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spelling pubmed-27252942009-08-21 The Spatial and Temporal Deployment of Voluntary Attention across the Visual Field Ibos, Guilhem Duhamel, Jean-René Ben Hamed, Suliann PLoS One Research Article Several studies have addressed the question of the time it takes for attention to shift from one position in space to another. Here we present a behavioural paradigm which offers a direct access to an estimate of voluntary shift time by comparing, in the same task, a situation in which subjects are required to re-engage their attention at the same spatial location with a situation in which they need to shift their attention to another location, all other sensory, cognitive and motor parameters being equal. We show that spatial attention takes on average 55 ms to voluntarily shift from one hemifield to the other and 38 ms to shift within the same hemifield. In addition, we show that across and within hemifields attentional processes are different. In particular, attentional spotlight division appears to be more difficult to operate within than across hemifields. Public Library of Science 2009-08-21 /pmc/articles/PMC2725294/ /pubmed/19696923 http://dx.doi.org/10.1371/journal.pone.0006716 Text en Ibos et al. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.
spellingShingle Research Article
Ibos, Guilhem
Duhamel, Jean-René
Ben Hamed, Suliann
The Spatial and Temporal Deployment of Voluntary Attention across the Visual Field
title The Spatial and Temporal Deployment of Voluntary Attention across the Visual Field
title_full The Spatial and Temporal Deployment of Voluntary Attention across the Visual Field
title_fullStr The Spatial and Temporal Deployment of Voluntary Attention across the Visual Field
title_full_unstemmed The Spatial and Temporal Deployment of Voluntary Attention across the Visual Field
title_short The Spatial and Temporal Deployment of Voluntary Attention across the Visual Field
title_sort spatial and temporal deployment of voluntary attention across the visual field
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2725294/
https://www.ncbi.nlm.nih.gov/pubmed/19696923
http://dx.doi.org/10.1371/journal.pone.0006716
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