HapticV1, PascalFrancis, Corpus, bibRecord, 000849

Curvature affects haptic length perception

Identifieur interne : 000849 ( PascalFrancis/Corpus ); précédent : 000848; suivant : 000850

Curvature affects haptic length perception

Auteurs : Abram F. J. Sanders ; Astrid M. L. Kappers

Source :

Acta psychologica [ 0001-6918 ] ; 2008.

RBID : Pascal:09-0026255

Descripteurs français

Pascal (Inist)
- Courbure, Sensibilité tactile, Longueur, Perception espace, Etude expérimentale, Mouvement corporel, Membre supérieur, Bras, Illusion perceptive, Homme.

English descriptors

KwdEn :
- Arm, Body movement, Curvature, Experimental study, Human, Length, Perceptual illusion, Space perception, Tactile sensitivity, Upper limb.

Abstract

One possible way of haptically perceiving length is to trace a path with one's index finger and estimate the distance traversed. Here, we present an experiment in which observers judge the lengths of paths across cylindrically curved surfaces. We found that convex and concave surfaces had qualitatively different effects: convex lengths were overestimated, whereas concave lengths were underestimated. In addition, we observed that the index finger moved more slowly across the convex surface than across the concave one. As a result, movement times for convex lengths were longer. The considerable correlation between movement times and length estimates suggests that observers take the duration of movement as their primary measure of perceived length, but disregard movement speeds. Several mechanisms that could underlie observers' failure to account for speed differences are considered.

Notice en format standard (ISO 2709)

Pour connaître la documentation sur le format Inist Standard.

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A02	`01`			`@0 APSOAZ`
A03		`1`		`@0 Acta psychol.`
A05				`@2 129`
A06				`@2 3`
A08	`01`	`1`	`ENG`	`@1 Curvature affects haptic length perception`
A11	`01`	`1`		`@1 SANDERS (Abram F. J.)`
A11	`02`	`1`		`@1 KAPPERS (Astrid M. L.)`
A14	`01`			`@1 Human Perception. The Physics of Man, Helmholtz Institute, Utrecht University, P.O. Box 80000 @2 3508 TA Utrecht @3 NLD @Z 1 aut. @Z 2 aut.`
A20				`@1 340-351`
A21				`@1 2008`
A23	`01`			`@0 ENG`
A43	`01`			`@1 INIST @2 2174 @5 354000184504530040`
A44				`@0 0000 @1 © 2009 INIST-CNRS. All rights reserved.`
A45				`@0 1/2 p.`
A47	`01`	`1`		`@0 09-0026255`
A60				`@1 P`
A61				`@0 A`
A64	`01`	`1`		`@0 Acta psychologica`
A66	`01`			`@0 NLD`
C01	`01`		`ENG`	@0 One possible way of haptically perceiving length is to trace a path with one's index finger and estimate the distance traversed. Here, we present an experiment in which observers judge the lengths of paths across cylindrically curved surfaces. We found that convex and concave surfaces had qualitatively different effects: convex lengths were overestimated, whereas concave lengths were underestimated. In addition, we observed that the index finger moved more slowly across the convex surface than across the concave one. As a result, movement times for convex lengths were longer. The considerable correlation between movement times and length estimates suggests that observers take the duration of movement as their primary measure of perceived length, but disregard movement speeds. Several mechanisms that could underlie observers' failure to account for speed differences are considered.
C02	`01`	`X`		`@0 002A26E05`
C03	`01`	`X`	`FRE`	`@0 Courbure @5 01`
C03	`01`	`X`	`ENG`	`@0 Curvature @5 01`
C03	`01`	`X`	`SPA`	`@0 Curvatura @5 01`
C03	`02`	`X`	`FRE`	`@0 Sensibilité tactile @5 02`
C03	`02`	`X`	`ENG`	`@0 Tactile sensitivity @5 02`
C03	`02`	`X`	`SPA`	`@0 Sensibilidad tactil @5 02`
C03	`03`	`X`	`FRE`	`@0 Longueur @5 03`
C03	`03`	`X`	`ENG`	`@0 Length @5 03`
C03	`03`	`X`	`SPA`	`@0 Longitud @5 03`
C03	`04`	`X`	`FRE`	`@0 Perception espace @5 04`
C03	`04`	`X`	`ENG`	`@0 Space perception @5 04`
C03	`04`	`X`	`SPA`	`@0 Percepción espacio @5 04`
C03	`05`	`X`	`FRE`	`@0 Etude expérimentale @5 06`
C03	`05`	`X`	`ENG`	`@0 Experimental study @5 06`
C03	`05`	`X`	`SPA`	`@0 Estudio experimental @5 06`
C03	`06`	`X`	`FRE`	`@0 Mouvement corporel @5 07`
C03	`06`	`X`	`ENG`	`@0 Body movement @5 07`
C03	`06`	`X`	`SPA`	`@0 Movimiento corporal @5 07`
C03	`07`	`X`	`FRE`	`@0 Membre supérieur @5 08`
C03	`07`	`X`	`ENG`	`@0 Upper limb @5 08`
C03	`07`	`X`	`SPA`	`@0 Miembro superior @5 08`
C03	`08`	`X`	`FRE`	`@0 Bras @5 09`
C03	`08`	`X`	`ENG`	`@0 Arm @5 09`
C03	`08`	`X`	`SPA`	`@0 Brazo @5 09`
C03	`09`	`X`	`FRE`	`@0 Illusion perceptive @5 10`
C03	`09`	`X`	`ENG`	`@0 Perceptual illusion @5 10`
C03	`09`	`X`	`SPA`	`@0 Ilusión perceptiva @5 10`
C03	`10`	`X`	`FRE`	`@0 Homme @5 18`
C03	`10`	`X`	`ENG`	`@0 Human @5 18`
C03	`10`	`X`	`SPA`	`@0 Hombre @5 18`
C07	`01`	`X`	`FRE`	`@0 Motricité @5 37`
C07	`01`	`X`	`ENG`	`@0 Motricity @5 37`
C07	`01`	`X`	`SPA`	`@0 Motricidad @5 37`
N21				`@1 012`

Format Inist (serveur)

NO :	PASCAL 09-0026255 INIST
ET :	Curvature affects haptic length perception
AU :	SANDERS (Abram F. J.); KAPPERS (Astrid M. L.)
AF :	Human Perception. The Physics of Man, Helmholtz Institute, Utrecht University, P.O. Box 80000/3508 TA Utrecht/Pays-Bas (1 aut., 2 aut.)
DT :	Publication en série; Niveau analytique
SO :	Acta psychologica; ISSN 0001-6918; Coden APSOAZ; Pays-Bas; Da. 2008; Vol. 129; No. 3; Pp. 340-351; Bibl. 1/2 p.
LA :	Anglais
EA :	One possible way of haptically perceiving length is to trace a path with one's index finger and estimate the distance traversed. Here, we present an experiment in which observers judge the lengths of paths across cylindrically curved surfaces. We found that convex and concave surfaces had qualitatively different effects: convex lengths were overestimated, whereas concave lengths were underestimated. In addition, we observed that the index finger moved more slowly across the convex surface than across the concave one. As a result, movement times for convex lengths were longer. The considerable correlation between movement times and length estimates suggests that observers take the duration of movement as their primary measure of perceived length, but disregard movement speeds. Several mechanisms that could underlie observers' failure to account for speed differences are considered.
CC :	002A26E05
FD :	Courbure; Sensibilité tactile; Longueur; Perception espace; Etude expérimentale; Mouvement corporel; Membre supérieur; Bras; Illusion perceptive; Homme
FG :	Motricité
ED :	Curvature; Tactile sensitivity; Length; Space perception; Experimental study; Body movement; Upper limb; Arm; Perceptual illusion; Human
EG :	Motricity
SD :	Curvatura; Sensibilidad tactil; Longitud; Percepción espacio; Estudio experimental; Movimiento corporal; Miembro superior; Brazo; Ilusión perceptiva; Hombre
LO :	INIST-2174.354000184504530040
ID :	09-0026255

Links to Exploration step

Pascal:09-0026255

Le document en format XML

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<front><div type="abstract" xml:lang="en">One possible way of haptically perceiving length is to trace a path with one's index finger and estimate the distance traversed. Here, we present an experiment in which observers judge the lengths of paths across cylindrically curved surfaces. We found that convex and concave surfaces had qualitatively different effects: convex lengths were overestimated, whereas concave lengths were underestimated. In addition, we observed that the index finger moved more slowly across the convex surface than across the concave one. As a result, movement times for convex lengths were longer. The considerable correlation between movement times and length estimates suggests that observers take the duration of movement as their primary measure of perceived length, but disregard movement speeds. Several mechanisms that could underlie observers' failure to account for speed differences are considered.</div>
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<ET>Curvature affects haptic length perception</ET>
<AU>SANDERS (Abram F. J.); KAPPERS (Astrid M. L.)</AU>
<AF>Human Perception. The Physics of Man, Helmholtz Institute, Utrecht University, P.O. Box 80000/3508 TA Utrecht/Pays-Bas (1 aut., 2 aut.)</AF>
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<EA>One possible way of haptically perceiving length is to trace a path with one's index finger and estimate the distance traversed. Here, we present an experiment in which observers judge the lengths of paths across cylindrically curved surfaces. We found that convex and concave surfaces had qualitatively different effects: convex lengths were overestimated, whereas concave lengths were underestimated. In addition, we observed that the index finger moved more slowly across the convex surface than across the concave one. As a result, movement times for convex lengths were longer. The considerable correlation between movement times and length estimates suggests that observers take the duration of movement as their primary measure of perceived length, but disregard movement speeds. Several mechanisms that could underlie observers' failure to account for speed differences are considered.</EA>
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Curvature affects haptic length perception

Curvature affects haptic length perception

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Descripteurs français

English descriptors

Abstract

Notice en format standard (ISO 2709)

Format Inist (serveur)

Links to Exploration step

Le document en format XML

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