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Calibrating reach distance to visual targets

Identifieur interne : 005A45 ( Main/Exploration ); précédent : 005A44; suivant : 005A46

Calibrating reach distance to visual targets

Auteurs : Mark Mon-Williams [Royaume-Uni] ; Geoffrey P. Bingham [États-Unis]

Source :

Journal of experimental psychology. Human perception and performance [ 0096-1523 ] ; 2007.

RBID : Pascal:07-0313210

Descripteurs français

Pascal (Inist)
- Vision, Perception espace, Cognition, Motricité, Mouvement corporel, Membre supérieur, Préhension, Sensibilité tactile, Distance stimulus, Etude expérimentale, Homme.
Wicri :
- topic : Homme.

English descriptors

KwdEn :
- Body movement, Cognition, Distance Perception, Experimental study, Feedback, Gripping, Human, Humans, Motricity, Space Perception, Space perception, Stimulus distance, Tactile sensitivity, Upper limb, Vision, Visual Perception.
MESH :
- Distance Perception, Feedback, Humans, Space Perception, Visual Perception.

Abstract

The authors investigated the calibration of reach distance by gradually distorting the haptic feedback obtained when participants grasped visible target objects. The authors found that the modified relationship between visually specified distance and reach distance could be captured by a straight-line mapping function. Thus, the relation could be described using 2 parameters: bias and slope. The authors investigated whether calibration generalized across reach space with respect to changes in bias and slope. In Experiment 1, the authors showed that both bias and slope recalibrate. In Experiment 2, they tested the symmetries of reach space with respect to changes in bias. They discovered that reach space is asymmetric, with the bias shifting inward more readily than outward. The authors measured how rapidly the system calibrated and the stability of calibration once feedback was removed. In Experiment 3, they showed that bias and slope can be calibrated independently of one another. In Experiment 4, the authors showed that these calibration effects are not cognitively penetrable.

Affiliations:

Royaume-Uni, États-Unis

Le document en format XML

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<term>Motricity</term>
<term>Space Perception</term>
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<term>Tactile sensitivity</term>
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<term>Feedback</term>
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<front><div type="abstract" xml:lang="en">The authors investigated the calibration of reach distance by gradually distorting the haptic feedback obtained when participants grasped visible target objects. The authors found that the modified relationship between visually specified distance and reach distance could be captured by a straight-line mapping function. Thus, the relation could be described using 2 parameters: bias and slope. The authors investigated whether calibration generalized across reach space with respect to changes in bias and slope. In Experiment 1, the authors showed that both bias and slope recalibrate. In Experiment 2, they tested the symmetries of reach space with respect to changes in bias. They discovered that reach space is asymmetric, with the bias shifting inward more readily than outward. The authors measured how rapidly the system calibrated and the stability of calibration once feedback was removed. In Experiment 3, they showed that bias and slope can be calibrated independently of one another. In Experiment 4, the authors showed that these calibration effects are not cognitively penetrable.</div>
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Serveur d'exploration sur les dispositifs haptiques

Calibrating reach distance to visual targets

Calibrating reach distance to visual targets

Source :

Descripteurs français

English descriptors

Abstract

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

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri

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