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Integration of haptic and visual size cues in perception and action revealed through cross-modal conflict

Identifieur interne : 000D56 ( PascalFrancis/Curation ); précédent : 000D55; suivant : 000D57

Integration of haptic and visual size cues in perception and action revealed through cross-modal conflict

Auteurs : Charles E. Pettypiece [Canada] ; Melvyn A. Goodale [Canada] ; Jody C. Culham [Canada]

Source :

RBID : Pascal:10-0177107

Descripteurs français

English descriptors

Abstract

We investigated the contribution of haptic and visual information about object size to both perception and action. Kinematics of the right hand were measured while participants performed grasping actions or manual estimations under the guidance of haptic information from the left hand, binocular visual information, or both haptics and vision. The greatest uncertainty was observed with haptic information alone. Moreover, when visual and haptic sizes were congruent, performance was no different from that with vision alone. Although this gives the appearance that vision dominates, when information from the two senses was incongruent, an influence of haptic cues emerged for both tasks. Our paradigm also allowed us to demonstrate that haptic sensitivity, like visual sensitivity, scales with object size for manual estimation (consistent with Weber's law) but not for grasping. In sum, although haptics represents a less certain source of information, haptic processing follows similar principles to vision and its contribution to perception and action becomes evident only when crossmodal information is incongruent.
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C03 03  X  FRE  @0 Cinématique @5 03
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C03 06  X  SPA  @0 Estimación @5 06
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C03 07  X  ENG  @0 Binocular vision @5 07
C03 07  X  SPA  @0 Visión binocular @5 07
C03 08  X  FRE  @0 Incertitude @5 08
C03 08  X  ENG  @0 Uncertainty @5 08
C03 08  X  SPA  @0 Incertidumbre @5 08
C03 09  X  FRE  @0 Traitement information @5 10
C03 09  X  ENG  @0 Information processing @5 10
C03 09  X  SPA  @0 Procesamiento información @5 10
C03 10  X  FRE  @0 Intégration multisensorielle @5 11
C03 10  X  ENG  @0 Multisensory integration @5 11
C03 10  X  SPA  @0 Integración multisensorial @5 11
C03 11  X  FRE  @0 Homme @5 54
C03 11  X  ENG  @0 Human @5 54
C03 11  X  SPA  @0 Hombre @5 54
C03 12  X  FRE  @0 Perception haptique @4 CD @5 96
C03 12  X  ENG  @0 Haptic perception @4 CD @5 96
C03 13  X  FRE  @0 Interaction intermodale @4 CD @5 97
C03 13  X  ENG  @0 Crossmodal interaction @4 CD @5 97
N21       @1 116
N44 01      @1 OTO
N82       @1 OTO

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Le document en format XML

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