HapticV1, PascalFrancis, Corpus, bibRecord, 001220

Active haptic detection and discrimination of shape

Identifieur interne : 001220 ( PascalFrancis/Corpus ); précédent : 001219; suivant : 001221

Active haptic detection and discrimination of shape

Auteurs : S. Louw ; A. M. L. Kappers ; J. J. Koenderink

Source :

Perception & psychophysics [ 0031-5117 ] ; 2002.

RBID : Pascal:03-0026442

Descripteurs français

Pascal (Inist)
- Etude expérimentale, Sensibilité tactile, Discrimination stimulus, Seuil détection, Forme stimulus, Fonction psychométrique, Seuil différentiel, Psychophysique, Perception, Homme.

English descriptors

KwdEn :
- Detection threshold, Differential threshold, Experimental study, Human, Perception, Psychometric function, Psychophysics, Stimulus discrimination, Stimulus shape, Tactile sensitivity.

Abstract

In previous research, we have shown that detection thresholds for Gaussian shapes increase with a power of 1.3 of spatial width. In the present three experiments, we generalized this finding to more complex shapes and to discrimination tasks. In Experiment 1, we found that the slope of the psychometric function for detection (i.e., distinguishing curved from flat surfaces) was independent of surface shape. In Experiment 3, we found the same result for discrimination of two different curved shapes. In Experiment 2, we found that detection and discrimination functions had the same dependence on spatial width, except that discrimination thresholds were two to four times larger. Possible neural mechanisms underlying these results are discussed.

Notice en format standard (ISO 2709)

Pour connaître la documentation sur le format Inist Standard.

A01	`01`	`1`		`@0 0031-5117`
A02	`01`			`@0 PEPSBJ`
A03		`1`		`@0 Percept. psychophys.`
A05				`@2 64`
A06				`@2 7`
A08	`01`	`1`	`ENG`	`@1 Active haptic detection and discrimination of shape`
A11	`01`	`1`		`@1 LOUW (S.)`
A11	`02`	`1`		`@1 KAPPERS (A. M. L.)`
A11	`03`	`1`		`@1 KOENDERINK (J. J.)`
A14	`01`			`@1 Utrecht University @2 Utrecht @3 NLD @Z 1 aut. @Z 2 aut. @Z 3 aut.`
A20				`@1 1108-1119`
A21				`@1 2002`
A23	`01`			`@0 ENG`
A43	`01`			`@1 INIST @2 14257 @5 354000105558380080`
A44				`@0 0000 @1 © 2003 INIST-CNRS. All rights reserved.`
A45				`@0 19 ref.`
A47	`01`	`1`		`@0 03-0026442`
A60				`@1 P`
A61				`@0 A`
A64	`01`	`1`		`@0 Perception & psychophysics`
A66	`01`			`@0 USA`
C01	`01`		`ENG`	@0 In previous research, we have shown that detection thresholds for Gaussian shapes increase with a power of 1.3 of spatial width. In the present three experiments, we generalized this finding to more complex shapes and to discrimination tasks. In Experiment 1, we found that the slope of the psychometric function for detection (i.e., distinguishing curved from flat surfaces) was independent of surface shape. In Experiment 3, we found the same result for discrimination of two different curved shapes. In Experiment 2, we found that detection and discrimination functions had the same dependence on spatial width, except that discrimination thresholds were two to four times larger. Possible neural mechanisms underlying these results are discussed.
C02	`01`	`X`		`@0 002A26E05`
C03	`01`	`X`	`FRE`	`@0 Etude expérimentale @5 01`
C03	`01`	`X`	`ENG`	`@0 Experimental study @5 01`
C03	`01`	`X`	`SPA`	`@0 Estudio experimental @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 Discrimination stimulus @5 03`
C03	`03`	`X`	`ENG`	`@0 Stimulus discrimination @5 03`
C03	`03`	`X`	`SPA`	`@0 Discriminación estímulo @5 03`
C03	`04`	`X`	`FRE`	`@0 Seuil détection @5 04`
C03	`04`	`X`	`ENG`	`@0 Detection threshold @5 04`
C03	`04`	`X`	`SPA`	`@0 Umbral detección @5 04`
C03	`05`	`X`	`FRE`	`@0 Forme stimulus @5 05`
C03	`05`	`X`	`ENG`	`@0 Stimulus shape @5 05`
C03	`05`	`X`	`SPA`	`@0 Forma estímulo @5 05`
C03	`06`	`X`	`FRE`	`@0 Fonction psychométrique @5 06`
C03	`06`	`X`	`ENG`	`@0 Psychometric function @5 06`
C03	`06`	`X`	`SPA`	`@0 Funcíon psichometrica @5 06`
C03	`07`	`X`	`FRE`	`@0 Seuil différentiel @5 07`
C03	`07`	`X`	`ENG`	`@0 Differential threshold @5 07`
C03	`07`	`X`	`SPA`	`@0 Umbral diferencial @5 07`
C03	`08`	`X`	`FRE`	`@0 Psychophysique @5 17`
C03	`08`	`X`	`ENG`	`@0 Psychophysics @5 17`
C03	`08`	`X`	`SPA`	`@0 Psicofísica @5 17`
C03	`09`	`X`	`FRE`	`@0 Perception @5 18`
C03	`09`	`X`	`ENG`	`@0 Perception @5 18`
C03	`09`	`X`	`SPA`	`@0 Percepción @5 18`
C03	`10`	`X`	`FRE`	`@0 Homme @5 19`
C03	`10`	`X`	`ENG`	`@0 Human @5 19`
C03	`10`	`X`	`SPA`	`@0 Hombre @5 19`
N21				`@1 013`
N82				`@1 PSI`

Format Inist (serveur)

NO :	PASCAL 03-0026442 INIST
ET :	Active haptic detection and discrimination of shape
AU :	LOUW (S.); KAPPERS (A. M. L.); KOENDERINK (J. J.)
AF :	Utrecht University/Utrecht/Pays-Bas (1 aut., 2 aut., 3 aut.)
DT :	Publication en série; Niveau analytique
SO :	Perception & psychophysics; ISSN 0031-5117; Coden PEPSBJ; Etats-Unis; Da. 2002; Vol. 64; No. 7; Pp. 1108-1119; Bibl. 19 ref.
LA :	Anglais
EA :	In previous research, we have shown that detection thresholds for Gaussian shapes increase with a power of 1.3 of spatial width. In the present three experiments, we generalized this finding to more complex shapes and to discrimination tasks. In Experiment 1, we found that the slope of the psychometric function for detection (i.e., distinguishing curved from flat surfaces) was independent of surface shape. In Experiment 3, we found the same result for discrimination of two different curved shapes. In Experiment 2, we found that detection and discrimination functions had the same dependence on spatial width, except that discrimination thresholds were two to four times larger. Possible neural mechanisms underlying these results are discussed.
CC :	002A26E05
FD :	Etude expérimentale; Sensibilité tactile; Discrimination stimulus; Seuil détection; Forme stimulus; Fonction psychométrique; Seuil différentiel; Psychophysique; Perception; Homme
ED :	Experimental study; Tactile sensitivity; Stimulus discrimination; Detection threshold; Stimulus shape; Psychometric function; Differential threshold; Psychophysics; Perception; Human
SD :	Estudio experimental; Sensibilidad tactil; Discriminación estímulo; Umbral detección; Forma estímulo; Funcíon psichometrica; Umbral diferencial; Psicofísica; Percepción; Hombre
LO :	INIST-14257.354000105558380080
ID :	03-0026442

Links to Exploration step

Pascal:03-0026442

Le document en format XML

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<ET>Active haptic detection and discrimination of shape</ET>
<AU>LOUW (S.); KAPPERS (A. M. L.); KOENDERINK (J. J.)</AU>
<AF>Utrecht University/Utrecht/Pays-Bas (1 aut., 2 aut., 3 aut.)</AF>
<DT>Publication en série; Niveau analytique</DT>
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<EA>In previous research, we have shown that detection thresholds for Gaussian shapes increase with a power of 1.3 of spatial width. In the present three experiments, we generalized this finding to more complex shapes and to discrimination tasks. In Experiment 1, we found that the slope of the psychometric function for detection (i.e., distinguishing curved from flat surfaces) was independent of surface shape. In Experiment 3, we found the same result for discrimination of two different curved shapes. In Experiment 2, we found that detection and discrimination functions had the same dependence on spatial width, except that discrimination thresholds were two to four times larger. Possible neural mechanisms underlying these results are discussed.</EA>
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Active haptic detection and discrimination of shape

Active haptic detection and discrimination of shape

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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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