Cargando…

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...

Descripción completa

Detalles Bibliográficos
Autores principales: Naber, Marnix, Elshout, Joris, Van der Stigchel, Stefan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Association for Research in Vision and Ophthalmology 2020
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
_version_ 1783597148357525504
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
work_keys_str_mv AT nabermarnix twohandsarebetterthanoneperceptualbenefitsbybimanualmovements
AT elshoutjoris twohandsarebetterthanoneperceptualbenefitsbybimanualmovements
AT vanderstigchelstefan twohandsarebetterthanoneperceptualbenefitsbybimanualmovements