HapticV1, PascalFrancis, Corpus, bibRecord, 000864

Haptic shape perception from force and position signals varies with exploratory movement direction and the exploring finger

Identifieur interne : 000864 ( PascalFrancis/Corpus ); précédent : 000863; suivant : 000865

Haptic shape perception from force and position signals varies with exploratory movement direction and the exploring finger

Auteurs : Knut Drewing ; Lukas Kaim

Source :

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

RBID : Francis:09-0356451

Descripteurs français

Pascal (Inist)
- Sensibilité tactile, Forme stimulus, Direction, Doigt, Mouvement corporel, Etude expérimentale, Force, Amplitude, Homme.

English descriptors

KwdEn :
- Amplitude, Body movement, Direction, Experimental study, Finger, Force, Human, Stimulus shape, Tactile sensitivity.

Abstract

We investigated how exploratory movement influences signal integration in active touch. Participants judged the amplitude of a bump specified by redundant signals: When a finger slides across a bump, the finger's position follows the bump's geometry (position signal); simultaneously, it is exposed to patterns of forces depending on the gradient of the bump (force signal). We varied amplitudes specified by force signals independently of amplitudes specified by position signals. Amplitude judgment was a weighted linear function of the amplitudes specified by both signals, under different exploratory conditions. The force signal's contribution to the judgment was higher when the participants explored with the index finger, as opposed to the thumb, and when they explored along a tangential axis, as opposed to a radial one (pivot ≅ shoulder joint). Furthermore, for tangential, as compared with radial, axis exploration, amplitude judgments were larger (and more accurate), and amplitude discrimination was better. We attribute these exploration-induced differences to biases in estimating bump amplitude from force signals. Given the choice, the participants preferred tangential explorations with the index finger-a behavior that resulted in good discrimination performance. A role for an active explorer, as well as biases that depend on exploration, should be taken into account when signal integration models are extended to active touch.

Notice en format standard (ISO 2709)

Pour connaître la documentation sur le format Inist Standard.

A01	`01`	`1`		`@0 1943-3921`
A03		`1`		`@0 Atten. percept. psychophys.`
A05				`@2 71`
A06				`@2 5`
A08	`01`	`1`	`ENG`	`@1 Haptic shape perception from force and position signals varies with exploratory movement direction and the exploring finger`
A11	`01`	`1`		`@1 DREWING (Knut)`
A11	`02`	`1`		`@1 KAIM (Lukas)`
A14	`01`			`@1 Giessen University @2 Giessen @3 DEU @Z 1 aut. @Z 2 aut.`
A20				`@1 1174-1184`
A21				`@1 2009`
A23	`01`			`@0 ENG`
A43	`01`			`@1 INIST @2 14257 @5 354000187483440150`
A44				`@0 0000 @1 © 2009 INIST-CNRS. All rights reserved.`
A45				`@0 1/2 p.`
A47	`01`	`1`		`@0 09-0356451`
A60				`@1 P`
A61				`@0 A`
A64	`01`	`1`		`@0 Attention, perception & psychophysics`
A66	`01`			`@0 USA`
C01	`01`		`ENG`	@0 We investigated how exploratory movement influences signal integration in active touch. Participants judged the amplitude of a bump specified by redundant signals: When a finger slides across a bump, the finger's position follows the bump's geometry (position signal); simultaneously, it is exposed to patterns of forces depending on the gradient of the bump (force signal). We varied amplitudes specified by force signals independently of amplitudes specified by position signals. Amplitude judgment was a weighted linear function of the amplitudes specified by both signals, under different exploratory conditions. The force signal's contribution to the judgment was higher when the participants explored with the index finger, as opposed to the thumb, and when they explored along a tangential axis, as opposed to a radial one (pivot ≅ shoulder joint). Furthermore, for tangential, as compared with radial, axis exploration, amplitude judgments were larger (and more accurate), and amplitude discrimination was better. We attribute these exploration-induced differences to biases in estimating bump amplitude from force signals. Given the choice, the participants preferred tangential explorations with the index finger-a behavior that resulted in good discrimination performance. A role for an active explorer, as well as biases that depend on exploration, should be taken into account when signal integration models are extended to active touch.
C02	`01`	`X`		`@0 770B05E @1 II`
C03	`01`	`X`	`FRE`	`@0 Sensibilité tactile @5 01`
C03	`01`	`X`	`ENG`	`@0 Tactile sensitivity @5 01`
C03	`01`	`X`	`SPA`	`@0 Sensibilidad tactil @5 01`
C03	`02`	`X`	`FRE`	`@0 Forme stimulus @5 02`
C03	`02`	`X`	`ENG`	`@0 Stimulus shape @5 02`
C03	`02`	`X`	`SPA`	`@0 Forma estímulo @5 02`
C03	`03`	`X`	`FRE`	`@0 Direction @5 03`
C03	`03`	`X`	`ENG`	`@0 Direction @5 03`
C03	`03`	`X`	`SPA`	`@0 Dirección @5 03`
C03	`04`	`X`	`FRE`	`@0 Doigt @5 04`
C03	`04`	`X`	`ENG`	`@0 Finger @5 04`
C03	`04`	`X`	`SPA`	`@0 Dedo @5 04`
C03	`05`	`X`	`FRE`	`@0 Mouvement corporel @5 05`
C03	`05`	`X`	`ENG`	`@0 Body movement @5 05`
C03	`05`	`X`	`SPA`	`@0 Movimiento corporal @5 05`
C03	`06`	`X`	`FRE`	`@0 Etude expérimentale @5 06`
C03	`06`	`X`	`ENG`	`@0 Experimental study @5 06`
C03	`06`	`X`	`SPA`	`@0 Estudio experimental @5 06`
C03	`07`	`X`	`FRE`	`@0 Force @5 07`
C03	`07`	`X`	`ENG`	`@0 Force @5 07`
C03	`07`	`X`	`SPA`	`@0 Fuerza @5 07`
C03	`08`	`X`	`FRE`	`@0 Amplitude @5 08`
C03	`08`	`X`	`ENG`	`@0 Amplitude @5 08`
C03	`08`	`X`	`SPA`	`@0 Amplitud @5 08`
C03	`09`	`X`	`FRE`	`@0 Homme @5 18`
C03	`09`	`X`	`ENG`	`@0 Human @5 18`
C03	`09`	`X`	`SPA`	`@0 Hombre @5 18`
C07	`01`	`X`	`FRE`	`@0 Perception @5 37`
C07	`01`	`X`	`ENG`	`@0 Perception @5 37`
C07	`01`	`X`	`SPA`	`@0 Percepción @5 37`
C07	`02`	`X`	`FRE`	`@0 Motricité @5 38`
C07	`02`	`X`	`ENG`	`@0 Motricity @5 38`
C07	`02`	`X`	`SPA`	`@0 Motricidad @5 38`
N21				`@1 257`

Format Inist (serveur)

NO :	FRANCIS 09-0356451 INIST
ET :	Haptic shape perception from force and position signals varies with exploratory movement direction and the exploring finger
AU :	DREWING (Knut); KAIM (Lukas)
AF :	Giessen University/Giessen/Allemagne (1 aut., 2 aut.)
DT :	Publication en série; Niveau analytique
SO :	Attention, perception & psychophysics; ISSN 1943-3921; Etats-Unis; Da. 2009; Vol. 71; No. 5; Pp. 1174-1184; Bibl. 1/2 p.
LA :	Anglais
EA :	We investigated how exploratory movement influences signal integration in active touch. Participants judged the amplitude of a bump specified by redundant signals: When a finger slides across a bump, the finger's position follows the bump's geometry (position signal); simultaneously, it is exposed to patterns of forces depending on the gradient of the bump (force signal). We varied amplitudes specified by force signals independently of amplitudes specified by position signals. Amplitude judgment was a weighted linear function of the amplitudes specified by both signals, under different exploratory conditions. The force signal's contribution to the judgment was higher when the participants explored with the index finger, as opposed to the thumb, and when they explored along a tangential axis, as opposed to a radial one (pivot ≅ shoulder joint). Furthermore, for tangential, as compared with radial, axis exploration, amplitude judgments were larger (and more accurate), and amplitude discrimination was better. We attribute these exploration-induced differences to biases in estimating bump amplitude from force signals. Given the choice, the participants preferred tangential explorations with the index finger-a behavior that resulted in good discrimination performance. A role for an active explorer, as well as biases that depend on exploration, should be taken into account when signal integration models are extended to active touch.
CC :	770B05E
FD :	Sensibilité tactile; Forme stimulus; Direction; Doigt; Mouvement corporel; Etude expérimentale; Force; Amplitude; Homme
FG :	Perception; Motricité
ED :	Tactile sensitivity; Stimulus shape; Direction; Finger; Body movement; Experimental study; Force; Amplitude; Human
EG :	Perception; Motricity
SD :	Sensibilidad tactil; Forma estímulo; Dirección; Dedo; Movimiento corporal; Estudio experimental; Fuerza; Amplitud; Hombre
LO :	INIST-14257.354000187483440150
ID :	09-0356451

Links to Exploration step

Francis:09-0356451

Le document en format XML

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<front><div type="abstract" xml:lang="en">We investigated how exploratory movement influences signal integration in active touch. Participants judged the amplitude of a bump specified by redundant signals: When a finger slides across a bump, the finger's position follows the bump's geometry (position signal); simultaneously, it is exposed to patterns of forces depending on the gradient of the bump (force signal). We varied amplitudes specified by force signals independently of amplitudes specified by position signals. Amplitude judgment was a weighted linear function of the amplitudes specified by both signals, under different exploratory conditions. The force signal's contribution to the judgment was higher when the participants explored with the index finger, as opposed to the thumb, and when they explored along a tangential axis, as opposed to a radial one (pivot ≅ shoulder joint). Furthermore, for tangential, as compared with radial, axis exploration, amplitude judgments were larger (and more accurate), and amplitude discrimination was better. We attribute these exploration-induced differences to biases in estimating bump amplitude from force signals. Given the choice, the participants preferred tangential explorations with the index finger-a behavior that resulted in good discrimination performance. A role for an active explorer, as well as biases that depend on exploration, should be taken into account when signal integration models are extended to active touch.</div>
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<ET>Haptic shape perception from force and position signals varies with exploratory movement direction and the exploring finger</ET>
<AU>DREWING (Knut); KAIM (Lukas)</AU>
<AF>Giessen University/Giessen/Allemagne (1 aut., 2 aut.)</AF>
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<EA>We investigated how exploratory movement influences signal integration in active touch. Participants judged the amplitude of a bump specified by redundant signals: When a finger slides across a bump, the finger's position follows the bump's geometry (position signal); simultaneously, it is exposed to patterns of forces depending on the gradient of the bump (force signal). We varied amplitudes specified by force signals independently of amplitudes specified by position signals. Amplitude judgment was a weighted linear function of the amplitudes specified by both signals, under different exploratory conditions. The force signal's contribution to the judgment was higher when the participants explored with the index finger, as opposed to the thumb, and when they explored along a tangential axis, as opposed to a radial one (pivot ≅ shoulder joint). Furthermore, for tangential, as compared with radial, axis exploration, amplitude judgments were larger (and more accurate), and amplitude discrimination was better. We attribute these exploration-induced differences to biases in estimating bump amplitude from force signals. Given the choice, the participants preferred tangential explorations with the index finger-a behavior that resulted in good discrimination performance. A role for an active explorer, as well as biases that depend on exploration, should be taken into account when signal integration models are extended to active touch.</EA>
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Haptic shape perception from force and position signals varies with exploratory movement direction and the exploring finger

Haptic shape perception from force and position signals varies with exploratory movement direction and the exploring finger

Source :

Descripteurs français

English descriptors

Abstract

Notice en format standard (ISO 2709)

Format Inist (serveur)

Links to Exploration step

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri