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Experience-dependent visual cue recalibration based on discrepancies between visual and haptic percepts

Identifieur interne : 001110 ( PascalFrancis/Corpus ); précédent : 001109; suivant : 001111

Experience-dependent visual cue recalibration based on discrepancies between visual and haptic percepts

Auteurs : Joseph E. Atkins ; Robert A. Jacobs ; David C. Knill

Source :

RBID : Pascal:04-0115643

Descripteurs français

English descriptors

Abstract

We studied the hypothesis that observers can recalibrate their visual percepts when visual and haptic (touch) cues are discordant and the haptic information is judged to be reliable. Using a novel visuo-haptic virtual reality environment, we conducted a set of experiments in which subjects interacted with scenes consisting of two fronto-parallel surfaces. Subjects judged the distance between the two surfaces based on two perceptual cues: a visual stereo cue obtained when viewing the scene binocularly and a haptic cue obtained when subjects grasped the two surfaces between their thumb and index fingers. Visual and haptic cues regarding the scene were manipulated independently so that they could either be consistent or inconsistent. Experiment I explored the effect of visuohaptic inconsistencies on depth-from-stereo estimates. Our findings suggest that when stereo and haptic cues are inconsistent, subjects recalibrate their interpretations of the visual stereo cue so that depth-from-stereo percepts are in greater agreement with depth-from-haptic percepts. In Experiment 2 the visuo-haptic discrepancy took a different form when the two surfaces were near the subject than when they were far from the subject. The results indicate that subjects recalibrated their interpretations of the stereo cue in a context-sensitive manner that depended on viewing distance, thereby making them more consistent with depth-from-haptic estimates at all viewing distances. Together these findings suggest that observers' visual and haptic percepts are tightly coupled in the sense that haptic percepts provide a standard to which visual percepts can be recalibrated when the visual percepts are deemed to be erroneous.

Notice en format standard (ISO 2709)

Pour connaître la documentation sur le format Inist Standard.

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A11 01  1    @1 ATKINS (Joseph E.)
A11 02  1    @1 JACOBS (Robert A.)
A11 03  1    @1 KNILL (David C.)
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A47 01  1    @0 04-0115643
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C01 01    ENG  @0 We studied the hypothesis that observers can recalibrate their visual percepts when visual and haptic (touch) cues are discordant and the haptic information is judged to be reliable. Using a novel visuo-haptic virtual reality environment, we conducted a set of experiments in which subjects interacted with scenes consisting of two fronto-parallel surfaces. Subjects judged the distance between the two surfaces based on two perceptual cues: a visual stereo cue obtained when viewing the scene binocularly and a haptic cue obtained when subjects grasped the two surfaces between their thumb and index fingers. Visual and haptic cues regarding the scene were manipulated independently so that they could either be consistent or inconsistent. Experiment I explored the effect of visuohaptic inconsistencies on depth-from-stereo estimates. Our findings suggest that when stereo and haptic cues are inconsistent, subjects recalibrate their interpretations of the visual stereo cue so that depth-from-stereo percepts are in greater agreement with depth-from-haptic percepts. In Experiment 2 the visuo-haptic discrepancy took a different form when the two surfaces were near the subject than when they were far from the subject. The results indicate that subjects recalibrated their interpretations of the stereo cue in a context-sensitive manner that depended on viewing distance, thereby making them more consistent with depth-from-haptic estimates at all viewing distances. Together these findings suggest that observers' visual and haptic percepts are tightly coupled in the sense that haptic percepts provide a standard to which visual percepts can be recalibrated when the visual percepts are deemed to be erroneous.
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Format Inist (serveur)

NO : PASCAL 04-0115643 INIST
ET : Experience-dependent visual cue recalibration based on discrepancies between visual and haptic percepts
AU : ATKINS (Joseph E.); JACOBS (Robert A.); KNILL (David C.)
AF : Department of Brain and Cognitive Sciences, The Center for Visual Science, University of Rochester/Rochester, NY 14627-0268/Etats-Unis (1 aut., 2 aut., 3 aut.)
DT : Publication en série; Niveau analytique
SO : Vision research : (Oxford); ISSN 0042-6989; Coden VISRAM; Royaume-Uni; Da. 2003; Vol. 43; No. 25; Pp. 2603-2613; Bibl. 13 ref.
LA : Anglais
EA : We studied the hypothesis that observers can recalibrate their visual percepts when visual and haptic (touch) cues are discordant and the haptic information is judged to be reliable. Using a novel visuo-haptic virtual reality environment, we conducted a set of experiments in which subjects interacted with scenes consisting of two fronto-parallel surfaces. Subjects judged the distance between the two surfaces based on two perceptual cues: a visual stereo cue obtained when viewing the scene binocularly and a haptic cue obtained when subjects grasped the two surfaces between their thumb and index fingers. Visual and haptic cues regarding the scene were manipulated independently so that they could either be consistent or inconsistent. Experiment I explored the effect of visuohaptic inconsistencies on depth-from-stereo estimates. Our findings suggest that when stereo and haptic cues are inconsistent, subjects recalibrate their interpretations of the visual stereo cue so that depth-from-stereo percepts are in greater agreement with depth-from-haptic percepts. In Experiment 2 the visuo-haptic discrepancy took a different form when the two surfaces were near the subject than when they were far from the subject. The results indicate that subjects recalibrated their interpretations of the stereo cue in a context-sensitive manner that depended on viewing distance, thereby making them more consistent with depth-from-haptic estimates at all viewing distances. Together these findings suggest that observers' visual and haptic percepts are tightly coupled in the sense that haptic percepts provide a standard to which visual percepts can be recalibrated when the visual percepts are deemed to be erroneous.
CC : 002A26E03
FD : Vision binoculaire; Stimulus visuel; Expérience acquise; Réalité virtuelle; Préhension; Homme; Etude expérimentale
FG : Perception; Processus acquisition
ED : Binocular vision; Visual stimulus; Acquired experience; Virtual reality; Gripping; Human; Experimental study
EG : Perception; Acquisition process
SD : Visión binocular; Estimulo visual; Experiencia adquirida; Realidad virtual; Prension; Hombre; Estudio experimental
LO : INIST-1684.354000112488960020
ID : 04-0115643

Links to Exploration step

Pascal:04-0115643

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<EA>We studied the hypothesis that observers can recalibrate their visual percepts when visual and haptic (touch) cues are discordant and the haptic information is judged to be reliable. Using a novel visuo-haptic virtual reality environment, we conducted a set of experiments in which subjects interacted with scenes consisting of two fronto-parallel surfaces. Subjects judged the distance between the two surfaces based on two perceptual cues: a visual stereo cue obtained when viewing the scene binocularly and a haptic cue obtained when subjects grasped the two surfaces between their thumb and index fingers. Visual and haptic cues regarding the scene were manipulated independently so that they could either be consistent or inconsistent. Experiment I explored the effect of visuohaptic inconsistencies on depth-from-stereo estimates. Our findings suggest that when stereo and haptic cues are inconsistent, subjects recalibrate their interpretations of the visual stereo cue so that depth-from-stereo percepts are in greater agreement with depth-from-haptic percepts. In Experiment 2 the visuo-haptic discrepancy took a different form when the two surfaces were near the subject than when they were far from the subject. The results indicate that subjects recalibrated their interpretations of the stereo cue in a context-sensitive manner that depended on viewing distance, thereby making them more consistent with depth-from-haptic estimates at all viewing distances. Together these findings suggest that observers' visual and haptic percepts are tightly coupled in the sense that haptic percepts provide a standard to which visual percepts can be recalibrated when the visual percepts are deemed to be erroneous.</EA>
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<FD>Vision binoculaire; Stimulus visuel; Expérience acquise; Réalité virtuelle; Préhension; Homme; Etude expérimentale</FD>
<FG>Perception; Processus acquisition</FG>
<ED>Binocular vision; Visual stimulus; Acquired experience; Virtual reality; Gripping; Human; Experimental study</ED>
<EG>Perception; Acquisition process</EG>
<SD>Visión binocular; Estimulo visual; Experiencia adquirida; Realidad virtual; Prension; Hombre; Estudio experimental</SD>
<LO>INIST-1684.354000112488960020</LO>
<ID>04-0115643</ID>
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