Serveur d'exploration sur les dispositifs haptiques

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Visual Effects of Haptic Feedback Are Large but Local

Identifieur interne : 002861 ( Main/Curation ); précédent : 002860; suivant : 002862

Visual Effects of Haptic Feedback Are Large but Local

Auteurs : Xin Meng ; Qasim Zaidi

Source :

RBID : PMC:3091883

English descriptors

Abstract

Vision generally provides reliable predictions for touch and motor-control, but some classes of stimuli evoke visual illusions. Using haptic feedback on virtual 3-D surfaces, we tested the function of touch in such cases. Our experiments show that in the perception of 3-D shapes from texture cues, haptic information can dominate vision in some cases, changing percepts qualitatively from convex to concave and concave to slant. The effects take time to develop, do not outlive the cessation of the feedback, are attenuated by distance, and drastically reduced by gaps in the surface. These dynamic shifts in qualitative perceived shapes could be invaluable in neural investigations that test whether haptic feedback modifies selective activation of neurons or changes the shape-tuning of neurons responsible for percepts of 3-D shapes.


Url:
DOI: 10.1371/journal.pone.0019877
PubMed: 21572964
PubMed Central: 3091883

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PMC:3091883

Le document en format XML

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