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Visual tracking combined with hand-tracking improves time perception of moving stimuli
A number of studies have shown that performing a secondary task while executing a time-judgment task impairs performance on the latter task. However, this turns out not to be the case for certain motor secondary tasks. We show that concomitant secondary motor tasks involving pointing, when performed...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2014
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4064321/ https://www.ncbi.nlm.nih.gov/pubmed/24946842 http://dx.doi.org/10.1038/srep05363 |
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author | Carlini, Alessandro French, Robert |
author_facet | Carlini, Alessandro French, Robert |
author_sort | Carlini, Alessandro |
collection | PubMed |
description | A number of studies have shown that performing a secondary task while executing a time-judgment task impairs performance on the latter task. However, this turns out not to be the case for certain motor secondary tasks. We show that concomitant secondary motor tasks involving pointing, when performed during a time-judgment task, can actually improve our time-judgment abilities. We compared adult participants' performance in a time-of-movement paradigm with visual pursuit-only and with visual pursuit plus hand pursuit. Rather than interfering with their estimation of stimulus movement duration, the addition of hand pursuit significantly improved their judgment. In addition, we considered the effect of three different movement profiles and four different movement speeds for the moving stimulus. As predicted by Vierordt's law, time judgments of shorter stimuli are overestimated and longer stimuli underestimated. Finally, timing performances appear to improve when the moving target follows a “biological” velocity profile. |
format | Online Article Text |
id | pubmed-4064321 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2014 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-40643212014-06-23 Visual tracking combined with hand-tracking improves time perception of moving stimuli Carlini, Alessandro French, Robert Sci Rep Article A number of studies have shown that performing a secondary task while executing a time-judgment task impairs performance on the latter task. However, this turns out not to be the case for certain motor secondary tasks. We show that concomitant secondary motor tasks involving pointing, when performed during a time-judgment task, can actually improve our time-judgment abilities. We compared adult participants' performance in a time-of-movement paradigm with visual pursuit-only and with visual pursuit plus hand pursuit. Rather than interfering with their estimation of stimulus movement duration, the addition of hand pursuit significantly improved their judgment. In addition, we considered the effect of three different movement profiles and four different movement speeds for the moving stimulus. As predicted by Vierordt's law, time judgments of shorter stimuli are overestimated and longer stimuli underestimated. Finally, timing performances appear to improve when the moving target follows a “biological” velocity profile. Nature Publishing Group 2014-06-20 /pmc/articles/PMC4064321/ /pubmed/24946842 http://dx.doi.org/10.1038/srep05363 Text en Copyright © 2014, Macmillan Publishers Limited. All rights reserved http://creativecommons.org/licenses/by-nc-nd/4.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder in order to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/4.0/ |
spellingShingle | Article Carlini, Alessandro French, Robert Visual tracking combined with hand-tracking improves time perception of moving stimuli |
title | Visual tracking combined with hand-tracking improves time perception of moving stimuli |
title_full | Visual tracking combined with hand-tracking improves time perception of moving stimuli |
title_fullStr | Visual tracking combined with hand-tracking improves time perception of moving stimuli |
title_full_unstemmed | Visual tracking combined with hand-tracking improves time perception of moving stimuli |
title_short | Visual tracking combined with hand-tracking improves time perception of moving stimuli |
title_sort | visual tracking combined with hand-tracking improves time perception of moving stimuli |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4064321/ https://www.ncbi.nlm.nih.gov/pubmed/24946842 http://dx.doi.org/10.1038/srep05363 |
work_keys_str_mv | AT carlinialessandro visualtrackingcombinedwithhandtrackingimprovestimeperceptionofmovingstimuli AT frenchrobert visualtrackingcombinedwithhandtrackingimprovestimeperceptionofmovingstimuli |