HapticV1, Main, Curation, bibRecord, 007364

Humans integrate visual and haptic information in a statistically optimal fashion

Identifieur interne : 007364 ( Main/Curation ); précédent : 007363; suivant : 007365

Humans integrate visual and haptic information in a statistically optimal fashion

Auteurs : Marc O. Ernst [États-Unis] ; Martin S. Banks [États-Unis]

Source :

Nature : (London) [ 0028-0836 ] ; 2002.

RBID : Pascal:02-0244122

Descripteurs français

Pascal (Inist)
- Intégration information, Perception intermodale, Vision, Sensibilité tactile, Maximum vraisemblance, Modèle statistique, Perception, Cognition, Homme.
Wicri :
- topic : Homme.

English descriptors

KwdEn :
- Adult, Cognition, Human, Humans, Information integration, Intermodal perception, Maximum likelihood, Models, Neurological, Perception, Sensory Thresholds, Size Perception (physiology), Statistical model, Tactile sensitivity, Touch (physiology), Vision.
MESH :
- physiology : Size Perception, Touch.
- Adult, Humans, Models, Neurological, Sensory Thresholds.

Abstract

When a person looks at an object while exploring it with their hand, vision and touch both provide information for estimating the properties of the object. Vision frequently dominates the integrated visual-haptic percept, for example when judging size, shape or position^1-3, but in some circumstances the percept is clearly affected by haptics^4-7. Here we propose that a general principle, which minimizes variance in the final estimate, determines the degree to which vision or haptics dominates. This principle is realized by using maximum-likelihood estimation^8-15 to combine the inputs. To investigate cue combination quantitatively, we first measured the variances associated with visual and haptic estimation of height. We then used these measurements to construct a maximum-likelihood integrator. This model behaved very similarly to humans in a visual-haptic task. Thus, the nervous system seems to combine visual and haptic information in a fashion that is similar to a maximum-likelihood integrator. Visual dominance occurs when the variance associated with visual estimation is lower than that associated with haptic estimation.

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Pascal:02-0244122

Le document en format XML

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<front><div type="abstract" xml:lang="en">When a person looks at an object while exploring it with their hand, vision and touch both provide information for estimating the properties of the object. Vision frequently dominates the integrated visual-haptic percept, for example when judging size, shape or position<sup>1-3</sup>
, but in some circumstances the percept is clearly affected by haptics<sup>4-7</sup>
. Here we propose that a general principle, which minimizes variance in the final estimate, determines the degree to which vision or haptics dominates. This principle is realized by using maximum-likelihood estimation<sup>8-15</sup>
 to combine the inputs. To investigate cue combination quantitatively, we first measured the variances associated with visual and haptic estimation of height. We then used these measurements to construct a maximum-likelihood integrator. This model behaved very similarly to humans in a visual-haptic task. Thus, the nervous system seems to combine visual and haptic information in a fashion that is similar to a maximum-likelihood integrator. Visual dominance occurs when the variance associated with visual estimation is lower than that associated with haptic estimation.</div>
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<front><div type="abstract" xml:lang="en">When a person looks at an object while exploring it with their hand, vision and touch both provide information for estimating the properties of the object. Vision frequently dominates the integrated visual-haptic percept, for example when judging size, shape or position<sup>1-3</sup>
, but in some circumstances the percept is clearly affected by haptics<sup>4-7</sup>
. Here we propose that a general principle, which minimizes variance in the final estimate, determines the degree to which vision or haptics dominates. This principle is realized by using maximum-likelihood estimation<sup>8-15</sup>
 to combine the inputs. To investigate cue combination quantitatively, we first measured the variances associated with visual and haptic estimation of height. We then used these measurements to construct a maximum-likelihood integrator. This model behaved very similarly to humans in a visual-haptic task. Thus, the nervous system seems to combine visual and haptic information in a fashion that is similar to a maximum-likelihood integrator. Visual dominance occurs when the variance associated with visual estimation is lower than that associated with haptic estimation.</div>
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<front><div type="abstract" xml:lang="en">When a person looks at an object while exploring it with their hand, vision and touch both provide information for estimating the properties of the object. Vision frequently dominates the integrated visual-haptic percept, for example when judging size, shape or position, but in some circumstances the percept is clearly affected by haptics. Here we propose that a general principle, which minimizes variance in the final estimate, determines the degree to which vision or haptics dominates. This principle is realized by using maximum-likelihood estimation to combine the inputs. To investigate cue combination quantitatively, we first measured the variances associated with visual and haptic estimation of height. We then used these measurements to construct a maximum-likelihood integrator. This model behaved very similarly to humans in a visual-haptic task. Thus, the nervous system seems to combine visual and haptic information in a fashion that is similar to a maximum-likelihood integrator. Visual dominance occurs when the variance associated with visual estimation is lower than that associated with haptic estimation.</div>
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Humans integrate visual and haptic information in a statistically optimal fashion

Humans integrate visual and haptic information in a statistically optimal fashion

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Links to Exploration step

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri