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The Horizontal-Vertical Curvature Illusion in Touch Is Present in Three-Dimensional Objects and Raised Lines

Identifieur interne : 001E94 ( Main/Exploration ); précédent : 001E93; suivant : 001E95

The Horizontal-Vertical Curvature Illusion in Touch Is Present in Three-Dimensional Objects and Raised Lines

Auteurs : Morton A. Heller [États-Unis] ; Amy Smith [États-Unis] ; Rita Schnarr [États-Unis] ; Jennifer Larson [États-Unis] ; Soledad Ballesteros [Espagne]

Source :

The American journal of psychology [ 0002-9556 ] ; 2013.

RBID : Pascal:13-0129270

Descripteurs français

Pascal (Inist)
- Illusion perceptive, Courbure, Sensibilité tactile, Etude expérimentale, Horizontalité verticalité, Espace 3 dimensions, Homme.
Wicri :
- topic : Homme.

English descriptors

KwdEn :
- Blindness (psychology), Curvature, Depth Perception, Experimental study, Female, Form Perception, Functional Laterality, Horizontality verticality, Human, Humans, Illusions, Male, Orientation, Perceptual illusion, Sensory Deprivation, Size Perception, Stereognosis, Tactile sensitivity, Three dimensional space, Young Adult.
MESH :
- psychology : Blindness.
- Depth Perception, Female, Form Perception, Functional Laterality, Humans, Illusions, Male, Orientation, Sensory Deprivation, Size Perception, Stereognosis, Young Adult.

Abstract

The present study compared the strength of the horizontal-vertical illusion in blindfolded sighted people with raised-line curves and three-dimensional (3-D) objects. Although the horizontal-vertical curvature illusion has been reported with raised-line stimuli in both vision and touch, it was not known whether similar haptic distortion would be found with 3-D objects. Similar overestimation of verticals was found with both types of stimuli in Experiment 1. Experiment 2 used bimanual unrestricted exploration at the body midline and stimuli horizontal on the table surface or in the frontal plane. In Experiment 2, illusion strength was substantially stronger when the stimuli were frontal and diminished overall for the horizontal group. The horizontal-vertical illusion was strong with optimal methods of presentation (free bimanual exploration) in Experiment 2, even where radial-tangential scanning could not be a causal factor in the frontal group. The results suggest that illusory distortion in haptics is not the result of the use of raised lines, and these patterns can be effective surrogates for 3-D objects.

Affiliations:

Espagne, États-Unis

Le document en format XML

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<front><div type="abstract" xml:lang="en">The present study compared the strength of the horizontal-vertical illusion in blindfolded sighted people with raised-line curves and three-dimensional (3-D) objects. Although the horizontal-vertical curvature illusion has been reported with raised-line stimuli in both vision and touch, it was not known whether similar haptic distortion would be found with 3-D objects. Similar overestimation of verticals was found with both types of stimuli in Experiment 1. Experiment 2 used bimanual unrestricted exploration at the body midline and stimuli horizontal on the table surface or in the frontal plane. In Experiment 2, illusion strength was substantially stronger when the stimuli were frontal and diminished overall for the horizontal group. The horizontal-vertical illusion was strong with optimal methods of presentation (free bimanual exploration) in Experiment 2, even where radial-tangential scanning could not be a causal factor in the frontal group. The results suggest that illusory distortion in haptics is not the result of the use of raised lines, and these patterns can be effective surrogates for 3-D objects.</div>
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The Horizontal-Vertical Curvature Illusion in Touch Is Present in Three-Dimensional Objects and Raised Lines

The Horizontal-Vertical Curvature Illusion in Touch Is Present in Three-Dimensional Objects and Raised Lines

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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