Experience-dependent visual cue recalibration based on discrepancies between visual and haptic percepts.
Identifieur interne : 000453 ( Ncbi/Checkpoint ); précédent : 000452; suivant : 000454Experience-dependent visual cue recalibration based on discrepancies between visual and haptic percepts.
Auteurs : Joseph E. Atkins [États-Unis] ; Robert A. Jacobs ; David C. KnillSource :
- Vision research [ 0042-6989 ] ; 2003.
English descriptors
- KwdEn :
- MESH :
- physiology : Convergence, Ocular, Depth Perception, Touch, Visual Perception.
- Adolescent, Adult, Cues, Female, Humans, Male, User-Computer Interface.
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 1 explored the effect of visuo-haptic 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.
PubMed: 14552802
Affiliations:
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Jacobs</name></author><author><name sortKey="Knill, David C" sort="Knill, David C" uniqKey="Knill D" first="David C" last="Knill">David C. Knill</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2003">2003</date><idno type="RBID">pubmed:14552802</idno><idno type="pmid">14552802</idno><idno type="wicri:Area/PubMed/Corpus">001B88</idno><idno type="wicri:Area/PubMed/Curation">001B88</idno><idno type="wicri:Area/PubMed/Checkpoint">001933</idno><idno type="wicri:Area/Ncbi/Merge">000453</idno><idno type="wicri:Area/Ncbi/Curation">000453</idno><idno type="wicri:Area/Ncbi/Checkpoint">000453</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Experience-dependent visual cue recalibration based on discrepancies between visual and haptic percepts.</title><author><name sortKey="Atkins, Joseph E" sort="Atkins, Joseph E" uniqKey="Atkins J" first="Joseph E" last="Atkins">Joseph E. Atkins</name><affiliation wicri:level="2"><nlm:affiliation>Department of Brain and Cognitive Sciences, The Center for Visual Science, University of Rochester, Rochester, NY 14627-0268, USA.</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of Brain and Cognitive Sciences, The Center for Visual Science, University of Rochester, Rochester, NY 14627-0268</wicri:regionArea><placeName><region type="state">État de New York</region></placeName></affiliation></author><author><name sortKey="Jacobs, Robert A" sort="Jacobs, Robert A" uniqKey="Jacobs R" first="Robert A" last="Jacobs">Robert A. Jacobs</name></author><author><name sortKey="Knill, David C" sort="Knill, David C" uniqKey="Knill D" first="David C" last="Knill">David C. Knill</name></author></analytic><series><title level="j">Vision research</title><idno type="ISSN">0042-6989</idno><imprint><date when="2003" type="published">2003</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adolescent</term><term>Adult</term><term>Convergence, Ocular (physiology)</term><term>Cues</term><term>Depth Perception (physiology)</term><term>Female</term><term>Humans</term><term>Male</term><term>Touch (physiology)</term><term>User-Computer Interface</term><term>Visual Perception (physiology)</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Convergence, Ocular</term><term>Depth Perception</term><term>Touch</term><term>Visual Perception</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Adolescent</term><term>Adult</term><term>Cues</term><term>Female</term><term>Humans</term><term>Male</term><term>User-Computer Interface</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">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 1 explored the effect of visuo-haptic 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.</div></front></TEI><affiliations><list><country><li>États-Unis</li></country><region><li>État de New York</li></region></list><tree><noCountry><name sortKey="Jacobs, Robert A" sort="Jacobs, Robert A" uniqKey="Jacobs R" first="Robert A" last="Jacobs">Robert A. Jacobs</name><name sortKey="Knill, David C" sort="Knill, David C" uniqKey="Knill D" first="David C" last="Knill">David C. Knill</name></noCountry><country name="États-Unis"><region name="État de New York"><name sortKey="Atkins, Joseph E" sort="Atkins, Joseph E" uniqKey="Atkins J" first="Joseph E" last="Atkins">Joseph E. Atkins</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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