HapticV1, Main, Exploration, bibRecordById, pubmed:19304631

Salient features in 3-D haptic shape perception

Identifieur interne : 004850 ( Main/Exploration ); précédent : 004849; suivant : 004851

Salient features in 3-D haptic shape perception

Auteurs : Myrthe A. Plaisier [Pays-Bas] ; Wouter M. Bergmann Tiest [Pays-Bas] ; Astrid M. L. Kappers [Pays-Bas]

Source :

Attention, perception & psychophysics [ 1943-3921 ] ; 2009.

RBID : Pascal:09-0126788

Descripteurs français

Pascal (Inist)
- Espace 3 dimensions, Forme stimulus, Sensibilité tactile, Etude expérimentale, Homme.
Wicri :
- topic : Homme.

English descriptors

KwdEn :
- Attention, Cues, Depth Perception, Discrimination (Psychology), Experimental study, Female, Form Perception, Human, Humans, Male, Orientation, Psychophysics, Reaction Time, Stereognosis, Stimulus shape, Tactile sensitivity, Three dimensional space, Young Adult.
MESH :
- Attention, Cues, Depth Perception, Discrimination (Psychology), Female, Form Perception, Humans, Male, Orientation, Psychophysics, Reaction Time, Stereognosis, Young Adult.

Abstract

Shape is an important cue for recognizing an object by touch. Several features, such as edges, curvature, surface area, and aspect ratio, are associated with 3-D shape. To investigate the saliency of 3-D shape features, we developed a haptic search task. The target and distractor items consisted of shapes (cube, sphere, tetrahedron, cylinder, and ellipsoid) that differed in several of these features. Exploratory movements were left as unconstrained as possible. Our results show that this type of haptic search task can be performed very efficiently (25 msec/item) and that edges and vertices are the most salient features. Furthermore, very salient local features, such as edges, can also be perceived through enclosure, an exploratory procedure usually associated with global shape. Since the subjects had to answer as quickly as possible, this suggests that speed may be a factor in selecting the appropriate exploratory procedure.

Affiliations:

Le document en format XML

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<front><div type="abstract" xml:lang="en">Shape is an important cue for recognizing an object by touch. Several features, such as edges, curvature, surface area, and aspect ratio, are associated with 3-D shape. To investigate the saliency of 3-D shape features, we developed a haptic search task. The target and distractor items consisted of shapes (cube, sphere, tetrahedron, cylinder, and ellipsoid) that differed in several of these features. Exploratory movements were left as unconstrained as possible. Our results show that this type of haptic search task can be performed very efficiently (25 msec/item) and that edges and vertices are the most salient features. Furthermore, very salient local features, such as edges, can also be perceived through enclosure, an exploratory procedure usually associated with global shape. Since the subjects had to answer as quickly as possible, this suggests that speed may be a factor in selecting the appropriate exploratory procedure.</div>
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Serveur d'exploration sur les dispositifs haptiques

Salient features in 3-D haptic shape perception

Salient features in 3-D haptic shape perception

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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