Touch used to guide action is partially coded in a visual reference frame
Identifieur interne : 003F10 ( Main/Merge ); précédent : 003F09; suivant : 003F11Touch used to guide action is partially coded in a visual reference frame
Auteurs : Vanessa Harrar [Canada] ; Laurence R. Harris [Canada]Source :
- Experimental brain research [ 0014-4819 ] ; 2010.
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Abstract
The perceived location of touch on the skin is affected by the position of the eyes in the head, suggesting that it is at least partially coded in a visual reference frame. This observation was made by comparing the perceived location of a touch to a visual reference. Here, we ask whether the location of a touch is coded differently when it guides an action. We tested the perceived position of four touches on the arm (∼5 cm apart) while participants adopted one of four eccentric fixations. A touch-sensitive screen was positioned over the stimulated left arm and subjects pointed, using their right arm, to the perceived touch location. The location that subjects pointed to varied with eye position, shifting by 0.016 cm/deg in the direction of eye eccentricity. The dependence on eye position suggests that tactile coding for action is also at least partially coded in a visual reference frame, as it is for perception.
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Pascal:10-0301219Le document en format XML
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Harris</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Department of Psychology, York University, 4700 Keele St.</s1><s2>Toronto, ON M3J 1P3</s2><s3>CAN</s3><sZ>2 aut.</sZ></inist:fA14><country>Canada</country><wicri:noRegion>Toronto, ON M3J 1P3</wicri:noRegion></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">10-0301219</idno><date when="2010">2010</date><idno type="stanalyst">PASCAL 10-0301219 INIST</idno><idno type="RBID">Pascal:10-0301219</idno><idno type="wicri:Area/PascalFrancis/Corpus">000612</idno><idno type="stanalyst">FRANCIS 10-0301219 INIST</idno><idno type="wicri:Area/PascalFrancis/Corpus">000705</idno><idno type="wicri:Area/PascalFrancis/Curation">000D93</idno><idno type="wicri:Area/PascalFrancis/Checkpoint">000411</idno><idno type="wicri:doubleKey">0014-4819:2010:Harrar V:touch:used:to</idno><idno type="wicri:Area/Main/Merge">003F10</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Touch used to guide action is partially coded in a visual reference frame</title><author><name sortKey="Harrar, Vanessa" sort="Harrar, Vanessa" uniqKey="Harrar V" first="Vanessa" last="Harrar">Vanessa Harrar</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Centre for Vision Research, York University</s1><s2>Toronto, ON M3J 1P3</s2><s3>CAN</s3><sZ>1 aut.</sZ></inist:fA14><country>Canada</country><wicri:noRegion>Toronto, ON M3J 1P3</wicri:noRegion></affiliation></author><author><name sortKey="Harris, Laurence R" sort="Harris, Laurence R" uniqKey="Harris L" first="Laurence R." last="Harris">Laurence R. Harris</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Department of Psychology, York University, 4700 Keele St.</s1><s2>Toronto, ON M3J 1P3</s2><s3>CAN</s3><sZ>2 aut.</sZ></inist:fA14><country>Canada</country><wicri:noRegion>Toronto, ON M3J 1P3</wicri:noRegion></affiliation></author></analytic><series><title level="j" type="main">Experimental brain research</title><title level="j" type="abbreviated">Exp. brain res.</title><idno type="ISSN">0014-4819</idno><imprint><date when="2010">2010</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Experimental brain research</title><title level="j" type="abbreviated">Exp. brain res.</title><idno type="ISSN">0014-4819</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Eccentric movement</term><term>Eye</term><term>Gaze</term><term>Guide</term><term>Haptic perception</term><term>Human</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Guide</term><term>Oeil</term><term>Mouvement excentrique</term><term>Regard</term><term>Homme</term><term>Perception haptique</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Guide</term><term>Homme</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The perceived location of touch on the skin is affected by the position of the eyes in the head, suggesting that it is at least partially coded in a visual reference frame. This observation was made by comparing the perceived location of a touch to a visual reference. Here, we ask whether the location of a touch is coded differently when it guides an action. We tested the perceived position of four touches on the arm (∼5 cm apart) while participants adopted one of four eccentric fixations. A touch-sensitive screen was positioned over the stimulated left arm and subjects pointed, using their right arm, to the perceived touch location. The location that subjects pointed to varied with eye position, shifting by 0.016 cm/deg in the direction of eye eccentricity. The dependence on eye position suggests that tactile coding for action is also at least partially coded in a visual reference frame, as it is for perception.</div></front></TEI><affiliations><list><country><li>Canada</li></country></list><tree><country name="Canada"><noRegion><name sortKey="Harrar, Vanessa" sort="Harrar, Vanessa" uniqKey="Harrar V" first="Vanessa" last="Harrar">Vanessa Harrar</name></noRegion><name sortKey="Harris, Laurence R" sort="Harris, Laurence R" uniqKey="Harris L" first="Laurence R." last="Harris">Laurence R. Harris</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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