Effects of handedness on visual sensitivity in perihand space.

Recent studies have shown that changes in visual processing in perihand space are limited to the area around the right hand, at least in right-handers. One explanation for these findings is that perception is altered at locations where action is more likely to occur. To test this notion, we asked bo...

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Autores principales:	Nathalie Le Bigot, Marc Grosjean
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2012
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/24a8ff76d81f48258e75411844436389
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spelling	oai:doaj.org-article:24a8ff76d81f48258e754118444363892021-11-18T07:08:26ZEffects of handedness on visual sensitivity in perihand space.1932-620310.1371/journal.pone.0043150https://doaj.org/article/24a8ff76d81f48258e754118444363892012-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22912813/?tool=EBIhttps://doaj.org/toc/1932-6203Recent studies have shown that changes in visual processing in perihand space are limited to the area around the right hand, at least in right-handers. One explanation for these findings is that perception is altered at locations where action is more likely to occur. To test this notion, we asked both right- and left-handers to perform an unspeeded visual discrimination task under four hand-position configurations: Left hand, right hand, both hands, or no hands near the display. Compared to the no-hands (control) condition, visual sensitivity (d') was higher in the dominant-hand condition for right-handers and higher in the dominant- as well as the non-dominant hand condition for left-handers. When both hands were near the display, sensitivity was similar to that in the dominant-hand condition for right-handers and to that in the non-dominant hand condition for left-handers. This shows that performance differed between the two handedness groups when their non-dominant hand was near the display (both alone and accompanied by their dominant hand). Thus, the pattern for left-handers did not correspond to a mirror image of the pattern for right-handers. In line with studies on bimanual action control, visual processing in perihand space seems to be determined by the different ways in which left- and right-handers use their hands.Nathalie Le BigotMarc GrosjeanPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 7, Iss 8, p e43150 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Nathalie Le Bigot Marc Grosjean Effects of handedness on visual sensitivity in perihand space.
description	Recent studies have shown that changes in visual processing in perihand space are limited to the area around the right hand, at least in right-handers. One explanation for these findings is that perception is altered at locations where action is more likely to occur. To test this notion, we asked both right- and left-handers to perform an unspeeded visual discrimination task under four hand-position configurations: Left hand, right hand, both hands, or no hands near the display. Compared to the no-hands (control) condition, visual sensitivity (d') was higher in the dominant-hand condition for right-handers and higher in the dominant- as well as the non-dominant hand condition for left-handers. When both hands were near the display, sensitivity was similar to that in the dominant-hand condition for right-handers and to that in the non-dominant hand condition for left-handers. This shows that performance differed between the two handedness groups when their non-dominant hand was near the display (both alone and accompanied by their dominant hand). Thus, the pattern for left-handers did not correspond to a mirror image of the pattern for right-handers. In line with studies on bimanual action control, visual processing in perihand space seems to be determined by the different ways in which left- and right-handers use their hands.
format	article
author	Nathalie Le Bigot Marc Grosjean
author_facet	Nathalie Le Bigot Marc Grosjean
author_sort	Nathalie Le Bigot
title	Effects of handedness on visual sensitivity in perihand space.
title_short	Effects of handedness on visual sensitivity in perihand space.
title_full	Effects of handedness on visual sensitivity in perihand space.
title_fullStr	Effects of handedness on visual sensitivity in perihand space.
title_full_unstemmed	Effects of handedness on visual sensitivity in perihand space.
title_sort	effects of handedness on visual sensitivity in perihand space.
publisher	Public Library of Science (PLoS)
publishDate	2012
url	https://doaj.org/article/24a8ff76d81f48258e75411844436389
work_keys_str_mv	AT nathalielebigot effectsofhandednessonvisualsensitivityinperihandspace AT marcgrosjean effectsofhandednessonvisualsensitivityinperihandspace
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Effects of handedness on visual sensitivity in perihand space.

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