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Left hand, but not right hand, reaching is sensitive to visual context
Recently, it has been reported that grasping with the left hand is more vulnerable to visual size illusions than grasping with the right hand. The present study investigated whether this increased sensitivity of the left hand for visual context extends to reaching. Left- and right-handed participant...
Autores principales: | , , , , |
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Formato: | Texto |
Lenguaje: | English |
Publicado: |
Springer-Verlag
2010
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2862955/ https://www.ncbi.nlm.nih.gov/pubmed/20300930 http://dx.doi.org/10.1007/s00221-010-2214-6 |
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author | Adam, Jos J. Müskens, Rick Hoonhorst, Susan Pratt, Jay Fischer, Martin H. |
author_facet | Adam, Jos J. Müskens, Rick Hoonhorst, Susan Pratt, Jay Fischer, Martin H. |
author_sort | Adam, Jos J. |
collection | PubMed |
description | Recently, it has been reported that grasping with the left hand is more vulnerable to visual size illusions than grasping with the right hand. The present study investigated whether this increased sensitivity of the left hand for visual context extends to reaching. Left- and right-handed participants reached for targets embedded in two different visual contexts with either left or right hands. Visual context was manipulated by presenting targets either in a blank field or within an array of placeholders marking possible target locations. Regardless of handedness, the presence of placeholders affected left hand, but not right hand, reaching by improving end-point accuracy and reducing movement speed. Furthermore, left hand reaching was more accurate for far than near targets, whereas right hand reaching showed the opposite pattern. We discuss two possible hemispheric lateralization accounts of these findings. |
format | Text |
id | pubmed-2862955 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2010 |
publisher | Springer-Verlag |
record_format | MEDLINE/PubMed |
spelling | pubmed-28629552010-05-04 Left hand, but not right hand, reaching is sensitive to visual context Adam, Jos J. Müskens, Rick Hoonhorst, Susan Pratt, Jay Fischer, Martin H. Exp Brain Res Research Note Recently, it has been reported that grasping with the left hand is more vulnerable to visual size illusions than grasping with the right hand. The present study investigated whether this increased sensitivity of the left hand for visual context extends to reaching. Left- and right-handed participants reached for targets embedded in two different visual contexts with either left or right hands. Visual context was manipulated by presenting targets either in a blank field or within an array of placeholders marking possible target locations. Regardless of handedness, the presence of placeholders affected left hand, but not right hand, reaching by improving end-point accuracy and reducing movement speed. Furthermore, left hand reaching was more accurate for far than near targets, whereas right hand reaching showed the opposite pattern. We discuss two possible hemispheric lateralization accounts of these findings. Springer-Verlag 2010-03-19 2010 /pmc/articles/PMC2862955/ /pubmed/20300930 http://dx.doi.org/10.1007/s00221-010-2214-6 Text en © The Author(s) 2010 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 Note Adam, Jos J. Müskens, Rick Hoonhorst, Susan Pratt, Jay Fischer, Martin H. Left hand, but not right hand, reaching is sensitive to visual context |
title | Left hand, but not right hand, reaching is sensitive to visual context |
title_full | Left hand, but not right hand, reaching is sensitive to visual context |
title_fullStr | Left hand, but not right hand, reaching is sensitive to visual context |
title_full_unstemmed | Left hand, but not right hand, reaching is sensitive to visual context |
title_short | Left hand, but not right hand, reaching is sensitive to visual context |
title_sort | left hand, but not right hand, reaching is sensitive to visual context |
topic | Research Note |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2862955/ https://www.ncbi.nlm.nih.gov/pubmed/20300930 http://dx.doi.org/10.1007/s00221-010-2214-6 |
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