Haptic perception disambiguates visual perception of 3D shape.
Identifieur interne : 001043 ( Ncbi/Checkpoint ); précédent : 001042; suivant : 001044Haptic perception disambiguates visual perception of 3D shape.
Auteurs : Maarten W A. Wijntjes [Pays-Bas] ; Robert Volcic ; Sylvia C. Pont ; Jan J. Koenderink ; Astrid M L. KappersSource :
- Experimental brain research [ 1432-1106 ] ; 2009.
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Abstract
We studied the influence of haptics on visual perception of three-dimensional shape. Observers were shown pictures of an oblate spheroid in two different orientations. A gauge-figure task was used to measure their perception of the global shape. In the first two sessions only vision was used. The results showed that observers made large errors and interpreted the oblate spheroid as a sphere. They also misinterpreted the rotated oblate spheroid for a prolate spheroid. In two subsequent sessions observers were allowed to touch the stimulus while performing the task. The visual input remained unchanged: the observers were looking at the picture and could not see their hands. The results revealed that observers perceived a shape that was different from the vision-only sessions and closer to the veridical shape. Whereas, in general, vision is subject to ambiguities that arise from interpreting the retinal projection, our study shows that haptic input helps to disambiguate and reinterpret the visual input more veridically.
DOI: 10.1007/s00221-009-1713-9
PubMed: 19199097
Affiliations:
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Pont</name></author><author><name sortKey="Koenderink, Jan J" sort="Koenderink, Jan J" uniqKey="Koenderink J" first="Jan J" last="Koenderink">Jan J. Koenderink</name></author><author><name sortKey="Kappers, Astrid M L" sort="Kappers, Astrid M L" uniqKey="Kappers A" first="Astrid M L" last="Kappers">Astrid M L. 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Wijntjes</name><affiliation wicri:level="1"><nlm:affiliation>Faculty of Industrial Design Engineering, Delft University of Technology, Delft, The Netherlands. m.w.a.wijntjes@tudelft.nl</nlm:affiliation><country xml:lang="fr">Pays-Bas</country><wicri:regionArea>Faculty of Industrial Design Engineering, Delft University of Technology, Delft</wicri:regionArea><wicri:noRegion>Delft</wicri:noRegion></affiliation></author><author><name sortKey="Volcic, Robert" sort="Volcic, Robert" uniqKey="Volcic R" first="Robert" last="Volcic">Robert Volcic</name></author><author><name sortKey="Pont, Sylvia C" sort="Pont, Sylvia C" uniqKey="Pont S" first="Sylvia C" last="Pont">Sylvia C. Pont</name></author><author><name sortKey="Koenderink, Jan J" sort="Koenderink, Jan J" uniqKey="Koenderink J" first="Jan J" last="Koenderink">Jan J. Koenderink</name></author><author><name sortKey="Kappers, Astrid M L" sort="Kappers, Astrid M L" uniqKey="Kappers A" first="Astrid M L" last="Kappers">Astrid M L. Kappers</name></author></analytic><series><title level="j">Experimental brain research</title><idno type="eISSN">1432-1106</idno><imprint><date when="2009" type="published">2009</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Female</term><term>Hand</term><term>Humans</term><term>Male</term><term>Regression Analysis</term><term>Rotation</term><term>Touch Perception</term><term>Visual Perception</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Female</term><term>Hand</term><term>Humans</term><term>Male</term><term>Regression Analysis</term><term>Rotation</term><term>Touch Perception</term><term>Visual Perception</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">We studied the influence of haptics on visual perception of three-dimensional shape. Observers were shown pictures of an oblate spheroid in two different orientations. A gauge-figure task was used to measure their perception of the global shape. In the first two sessions only vision was used. The results showed that observers made large errors and interpreted the oblate spheroid as a sphere. They also misinterpreted the rotated oblate spheroid for a prolate spheroid. In two subsequent sessions observers were allowed to touch the stimulus while performing the task. The visual input remained unchanged: the observers were looking at the picture and could not see their hands. The results revealed that observers perceived a shape that was different from the vision-only sessions and closer to the veridical shape. Whereas, in general, vision is subject to ambiguities that arise from interpreting the retinal projection, our study shows that haptic input helps to disambiguate and reinterpret the visual input more veridically.</div></front></TEI><affiliations><list><country><li>Pays-Bas</li></country></list><tree><noCountry><name sortKey="Kappers, Astrid M L" sort="Kappers, Astrid M L" uniqKey="Kappers A" first="Astrid M L" last="Kappers">Astrid M L. Kappers</name><name sortKey="Koenderink, Jan J" sort="Koenderink, Jan J" uniqKey="Koenderink J" first="Jan J" last="Koenderink">Jan J. Koenderink</name><name sortKey="Pont, Sylvia C" sort="Pont, Sylvia C" uniqKey="Pont S" first="Sylvia C" last="Pont">Sylvia C. Pont</name><name sortKey="Volcic, Robert" sort="Volcic, Robert" uniqKey="Volcic R" first="Robert" last="Volcic">Robert Volcic</name></noCountry><country name="Pays-Bas"><noRegion><name sortKey="Wijntjes, Maarten W A" sort="Wijntjes, Maarten W A" uniqKey="Wijntjes M" first="Maarten W A" last="Wijntjes">Maarten W A. Wijntjes</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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