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The effects of size changes on haptic object recognition

Identifieur interne : 000766 ( PascalFrancis/Corpus ); précédent : 000765; suivant : 000767

The effects of size changes on haptic object recognition

Auteurs : Matt Craddock ; Rebecca Lawson

Source :

RBID : Pascal:09-0318752

Descripteurs français

English descriptors

Abstract

Two experiments examined the effects of size changes on haptic object recognition. In Experiment 1, participants named one of three exemplars (a standard-size-and-shape, different-size, or different-shape exemplar) of 36 categories of real, familiar objects. They then performed an old/new recognition task on the basis of object identity for the standard exemplars of all 36 objects. Half of the participants performed both blocks visually; the other half performed both blocks haptically. The participants were able to efficiently name unusually sized objects haptically, consistent with previous findings of good recognition of small-scale models of stimuli (Lawson, in press). However, performance was impaired for both visual and haptic old/new recognition when objects changed size or shape between blocks. In Experiment 2, participants performed a short-term haptic shape-matching task using 3-D plastic models of familiar objects, and as in Experiment 1, a cost emerged for ignoring the irrelevant size change. Like its visual counterpart, haptic object recognition incurs a significant but modest cost for generalizing across size changes.

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Pour connaître la documentation sur le format Inist Standard.

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A11 01  1    @1 CRADDOCK (Matt)
A11 02  1    @1 LAWSON (Rebecca)
A14 01      @1 University of Liverpool @2 Liverpool @3 GBR @Z 1 aut. @Z 2 aut.
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C01 01    ENG  @0 Two experiments examined the effects of size changes on haptic object recognition. In Experiment 1, participants named one of three exemplars (a standard-size-and-shape, different-size, or different-shape exemplar) of 36 categories of real, familiar objects. They then performed an old/new recognition task on the basis of object identity for the standard exemplars of all 36 objects. Half of the participants performed both blocks visually; the other half performed both blocks haptically. The participants were able to efficiently name unusually sized objects haptically, consistent with previous findings of good recognition of small-scale models of stimuli (Lawson, in press). However, performance was impaired for both visual and haptic old/new recognition when objects changed size or shape between blocks. In Experiment 2, participants performed a short-term haptic shape-matching task using 3-D plastic models of familiar objects, and as in Experiment 1, a cost emerged for ignoring the irrelevant size change. Like its visual counterpart, haptic object recognition incurs a significant but modest cost for generalizing across size changes.
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Format Inist (serveur)

NO : PASCAL 09-0318752 INIST
ET : The effects of size changes on haptic object recognition
AU : CRADDOCK (Matt); LAWSON (Rebecca)
AF : University of Liverpool/Liverpool/Royaume-Uni (1 aut., 2 aut.)
DT : Publication en série; Niveau analytique
SO : Attention, perception & psychophysics; ISSN 1943-3921; Etats-Unis; Da. 2009; Vol. 71; No. 4; Pp. 910-923; Bibl. 1 p.1/4
LA : Anglais
EA : Two experiments examined the effects of size changes on haptic object recognition. In Experiment 1, participants named one of three exemplars (a standard-size-and-shape, different-size, or different-shape exemplar) of 36 categories of real, familiar objects. They then performed an old/new recognition task on the basis of object identity for the standard exemplars of all 36 objects. Half of the participants performed both blocks visually; the other half performed both blocks haptically. The participants were able to efficiently name unusually sized objects haptically, consistent with previous findings of good recognition of small-scale models of stimuli (Lawson, in press). However, performance was impaired for both visual and haptic old/new recognition when objects changed size or shape between blocks. In Experiment 2, participants performed a short-term haptic shape-matching task using 3-D plastic models of familiar objects, and as in Experiment 1, a cost emerged for ignoring the irrelevant size change. Like its visual counterpart, haptic object recognition incurs a significant but modest cost for generalizing across size changes.
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FG : Perception
ED : Stimulus size; Tactile sensitivity; Object; Recognition; Stimulus change; Experimental study; Human
EG : Perception
SD : Dimensión estímulo; Sensibilidad tactil; Objeto; Reconocimiento; Cambio estímulo; Estudio experimental; Hombre
LO : INIST-14257.354000188500740200
ID : 09-0318752

Links to Exploration step

Pascal:09-0318752

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