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The perception and representation of orientations: A study in the haptic modality

Identifieur interne : 000290 ( PascalFrancis/Corpus ); précédent : 000289; suivant : 000291

The perception and representation of orientations: A study in the haptic modality

Auteurs : Gabriel Baud-Bovy ; Edouard Gentaz

Source :

RBID : Pascal:12-0404194

Descripteurs français

English descriptors

Abstract

This research examines the haptic perception of orientations in the frontal plane in order to identify the nature of their representation. Blindfolded participants inserted the tip of the index finger into a thimble mounted on the extremity of a haptic interface and manually explored the orientation of a "virtual rod". After a short delay, participants had to reproduce the scanned orientation with the same hand without the guidance of the virtual rod. The analysis of the systematic errors showed that the recalled orientations were markedly biased toward the nearest diagonal in each quadrant with the exception of the orientations nearest to the vertical, which were biased toward the vertical. The variable error was greater for the oblique orientations than for the horizontal or vertical orientation. These results are interpreted with the Category-Adjustment model, which posits that orientations are categorically represented. We show that it is necessary to assume the existence of vertical and horizontal categories in addition to the previously postulated oblique categories to predict the error patterns observed in the present and former studies. The similarity of the error patterns in the visual and haptic modalities suggests that a common mechanism is at play in perceiving and reproducing orientations in both sensory modalities.

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.
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A06       @2 1
A08 01  1  ENG  @1 The perception and representation of orientations: A study in the haptic modality
A11 01  1    @1 BAUD-BOVY (Gabriel)
A11 02  1    @1 GENTAZ (Edouard)
A14 01      @1 Vita-Salute San Raffaele University @2 Milan @3 ITA @Z 1 aut.
A14 02      @1 Robotics, Brain and Cognitive Sciences Department, Istituto Italiano di Tecnologia @2 Genoa @3 ITA @Z 1 aut.
A14 03      @1 National Center of Scientific Research (CNRS) @2 Grenoble @3 FRA @Z 2 aut.
A14 04      @1 University of Grenoble 2 (UPMF) @2 Grenoble @3 FRA @Z 2 aut.
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A21       @1 2012
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A44       @0 0000 @1 © 2012 INIST-CNRS. All rights reserved.
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A60       @1 P
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C01 01    ENG  @0 This research examines the haptic perception of orientations in the frontal plane in order to identify the nature of their representation. Blindfolded participants inserted the tip of the index finger into a thimble mounted on the extremity of a haptic interface and manually explored the orientation of a "virtual rod". After a short delay, participants had to reproduce the scanned orientation with the same hand without the guidance of the virtual rod. The analysis of the systematic errors showed that the recalled orientations were markedly biased toward the nearest diagonal in each quadrant with the exception of the orientations nearest to the vertical, which were biased toward the vertical. The variable error was greater for the oblique orientations than for the horizontal or vertical orientation. These results are interpreted with the Category-Adjustment model, which posits that orientations are categorically represented. We show that it is necessary to assume the existence of vertical and horizontal categories in addition to the previously postulated oblique categories to predict the error patterns observed in the present and former studies. The similarity of the error patterns in the visual and haptic modalities suggests that a common mechanism is at play in perceiving and reproducing orientations in both sensory modalities.
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C03 01  X  ENG  @0 Tactile sensitivity @5 01
C03 01  X  SPA  @0 Sensibilidad tactil @5 01
C03 02  X  FRE  @0 Perception espace @5 03
C03 02  X  ENG  @0 Space perception @5 03
C03 02  X  SPA  @0 Percepción espacio @5 03
C03 03  X  FRE  @0 Cognition spatiale @5 04
C03 03  X  ENG  @0 Spatial cognition @5 04
C03 03  X  SPA  @0 Cognición espacial @5 04
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C03 04  X  SPA  @0 Estudio experimental @5 05
C03 05  X  FRE  @0 Orientation spatiale @5 06
C03 05  X  ENG  @0 Spatial orientation @5 06
C03 05  X  SPA  @0 Orientación espacial @5 06
C03 06  X  FRE  @0 Représentation spatiale @5 07
C03 06  X  ENG  @0 Spatial representation @5 07
C03 06  X  SPA  @0 Representación espacial @5 07
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Format Inist (serveur)

NO : PASCAL 12-0404194 INIST
ET : The perception and representation of orientations: A study in the haptic modality
AU : BAUD-BOVY (Gabriel); GENTAZ (Edouard)
AF : Vita-Salute San Raffaele University/Milan/Italie (1 aut.); Robotics, Brain and Cognitive Sciences Department, Istituto Italiano di Tecnologia/Genoa/Italie (1 aut.); National Center of Scientific Research (CNRS)/Grenoble/France (2 aut.); University of Grenoble 2 (UPMF)/Grenoble/France (2 aut.)
DT : Publication en série; Niveau analytique
SO : Acta psychologica; ISSN 0001-6918; Coden APSOAZ; Royaume-Uni; Da. 2012; Vol. 141; No. 1; Pp. 24-30; Bibl. 3/4 p.
LA : Anglais
EA : This research examines the haptic perception of orientations in the frontal plane in order to identify the nature of their representation. Blindfolded participants inserted the tip of the index finger into a thimble mounted on the extremity of a haptic interface and manually explored the orientation of a "virtual rod". After a short delay, participants had to reproduce the scanned orientation with the same hand without the guidance of the virtual rod. The analysis of the systematic errors showed that the recalled orientations were markedly biased toward the nearest diagonal in each quadrant with the exception of the orientations nearest to the vertical, which were biased toward the vertical. The variable error was greater for the oblique orientations than for the horizontal or vertical orientation. These results are interpreted with the Category-Adjustment model, which posits that orientations are categorically represented. We show that it is necessary to assume the existence of vertical and horizontal categories in addition to the previously postulated oblique categories to predict the error patterns observed in the present and former studies. The similarity of the error patterns in the visual and haptic modalities suggests that a common mechanism is at play in perceiving and reproducing orientations in both sensory modalities.
CC : 002A26E05
FD : Sensibilité tactile; Perception espace; Cognition spatiale; Etude expérimentale; Orientation spatiale; Représentation spatiale; Homme
FG : Cognition; Perception
ED : Tactile sensitivity; Space perception; Spatial cognition; Experimental study; Spatial orientation; Spatial representation; Human
EG : Cognition; Perception
SD : Sensibilidad tactil; Percepción espacio; Cognición espacial; Estudio experimental; Orientación espacial; Representación espacial; Hombre
LO : INIST-2174.354000502028790040
ID : 12-0404194

Links to Exploration step

Pascal:12-0404194

Le document en format XML

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