Haptic perception disambiguates visual perception of 3D shape
Identifieur interne : 000808 ( PascalFrancis/Corpus ); précédent : 000807; suivant : 000809Haptic perception disambiguates visual perception of 3D shape
Auteurs : Maarten W. A. Wijntjes ; Robert Volcic ; Sylvia C. Pont ; Jan J. Koenderink ; Astrid M. L. KappersSource :
- Experimental brain research [ 0014-4819 ] ; 2009.
Descripteurs français
- Pascal (Inist)
English descriptors
- KwdEn :
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.
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Format Inist (serveur)
NO : | PASCAL 09-0137238 INIST |
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ET : | Haptic perception disambiguates visual perception of 3D shape |
AU : | WIJNTJES (Maarten W. A.); VOLCIC (Robert); PONT (Sylvia C.); KOENDERINK (Jan J.); KAPPERS (Astrid M. L.) |
AF : | Faculty of Industrial Design Engineering, Delft University of Technology/Delft/Pays-Bas (1 aut., 3 aut.); Psychologisches Institut II,Westfälische Wilhelms-Universität/Münster/Allemagne (2 aut.); Faculty of EEMCS, Delft University of Technology/Delft/Pays-Bas (4 aut.); Physics of Man, Helmholtz Institute, Utrecht University/Utrecht/Pays-Bas (5 aut.) |
DT : | Publication en série; Niveau analytique |
SO : | Experimental brain research; ISSN 0014-4819; Coden EXBRAP; Allemagne; Da. 2009; Vol. 193; No. 4; Pp. 639-644; Bibl. 1/4 p. |
LA : | Anglais |
EA : | 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. |
CC : | 002A25I; 002A26F04A |
FD : | Perception visuelle; Forme tridimensionnelle; Orientation; Main; Rétine; Homme; Perception haptique |
FG : | Appareil visuel; Oeil |
ED : | Visual perception; Three dimensional shape; Orientation; Hand; Retina; Human; Haptic perception |
EG : | Visual system; Eye |
SD : | Percepción visual; Forma tridimensional; Orientación; Mano; Retina; Hombre |
LO : | INIST-12535.354000187322310140 |
ID : | 09-0137238 |
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Pascal:09-0137238Le document en format XML
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<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>
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<EA>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.</EA>
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