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Two hands are better than one: Perceptual benefits by bimanual movements
Before looking at or reaching for an object, the focus of attention is first allocated to the movement object. Here we investigated whether the strength of these pre-motor shifts of attention cumulates if an object is targeted by multiple effectors (eyes and hands). A total of 29 participants were t...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Association for Research in Vision and Ophthalmology
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7571320/ https://www.ncbi.nlm.nih.gov/pubmed/33057622 http://dx.doi.org/10.1167/jov.20.10.16 |
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author | Naber, Marnix Elshout, Joris Van der Stigchel, Stefan |
author_facet | Naber, Marnix Elshout, Joris Van der Stigchel, Stefan |
author_sort | Naber, Marnix |
collection | PubMed |
description | Before looking at or reaching for an object, the focus of attention is first allocated to the movement object. Here we investigated whether the strength of these pre-motor shifts of attention cumulates if an object is targeted by multiple effectors (eyes and hands). A total of 29 participants were tested on a visuomotor task. They were cued to move gaze, the left hand, right hand, or both (one to three effectors) to a common object or to different peripheral objects. Before the movements, eight possible objects briefly changed form, of which one was a distinct probe. Results showed that the average recognition of the probe's identity change increased as more effectors targeted this object. For example, performance was higher when two hands as compared to one hand were moved to the probe. This effect remained evident despite the detrimental effect on performance of the increase in motor task complexity of moving two hands as compared to one hand. The accumulation of recognition improvements as a function of the number of effectors that successfully target the probe points at parallel and presumably independent mechanisms for hand- and eye-coordination that evoke pre-motor shifts of attention. |
format | Online Article Text |
id | pubmed-7571320 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | The Association for Research in Vision and Ophthalmology |
record_format | MEDLINE/PubMed |
spelling | pubmed-75713202020-10-27 Two hands are better than one: Perceptual benefits by bimanual movements Naber, Marnix Elshout, Joris Van der Stigchel, Stefan J Vis Article Before looking at or reaching for an object, the focus of attention is first allocated to the movement object. Here we investigated whether the strength of these pre-motor shifts of attention cumulates if an object is targeted by multiple effectors (eyes and hands). A total of 29 participants were tested on a visuomotor task. They were cued to move gaze, the left hand, right hand, or both (one to three effectors) to a common object or to different peripheral objects. Before the movements, eight possible objects briefly changed form, of which one was a distinct probe. Results showed that the average recognition of the probe's identity change increased as more effectors targeted this object. For example, performance was higher when two hands as compared to one hand were moved to the probe. This effect remained evident despite the detrimental effect on performance of the increase in motor task complexity of moving two hands as compared to one hand. The accumulation of recognition improvements as a function of the number of effectors that successfully target the probe points at parallel and presumably independent mechanisms for hand- and eye-coordination that evoke pre-motor shifts of attention. The Association for Research in Vision and Ophthalmology 2020-10-15 /pmc/articles/PMC7571320/ /pubmed/33057622 http://dx.doi.org/10.1167/jov.20.10.16 Text en Copyright 2020 The Authors http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. |
spellingShingle | Article Naber, Marnix Elshout, Joris Van der Stigchel, Stefan Two hands are better than one: Perceptual benefits by bimanual movements |
title | Two hands are better than one: Perceptual benefits by bimanual movements |
title_full | Two hands are better than one: Perceptual benefits by bimanual movements |
title_fullStr | Two hands are better than one: Perceptual benefits by bimanual movements |
title_full_unstemmed | Two hands are better than one: Perceptual benefits by bimanual movements |
title_short | Two hands are better than one: Perceptual benefits by bimanual movements |
title_sort | two hands are better than one: perceptual benefits by bimanual movements |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7571320/ https://www.ncbi.nlm.nih.gov/pubmed/33057622 http://dx.doi.org/10.1167/jov.20.10.16 |
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