HapticV1, Ncbi, Merge, bibRecord, 001506

Vision, haptics, and attention: new data from a multisensory Necker cube.

Identifieur interne : 001506 ( Ncbi/Merge ); précédent : 001505; suivant : 001507

Vision, haptics, and attention: new data from a multisensory Necker cube.

Auteurs : Marco Bertamini [Royaume-Uni] ; Luigi Masala ; Georg Meyer ; Nicola Bruno

Source :

Perception [ 0301-0066 ] ; 2010.

RBID : pubmed:20402242

English descriptors

KwdEn :
- Adult, Female, Fixation, Ocular, Form Perception (physiology), Humans, Male, Motion, Motion Perception (physiology), Touch (physiology), Young Adult.
MESH :
- physiology : Form Perception, Motion Perception, Touch.
- Adult, Female, Fixation, Ocular, Humans, Male, Motion, Young Adult.

Abstract

When looking monocularly at a three-dimensional (3-D) Necker cube two percepts alternate: a cube and a truncated pyramid. The latter is due to a depth reversal. We studied the effect of haptic information by having participants hold the cube with their hands and explore two of its vertices. Touch reduces the likelihood of the pyramid, consistent with a multisensory view of 3-D form perception. In addition, when the hand alternates between stationary and haptic exploration, the onset of the hand movement plays a crucial role in inhibiting reversals. A temporal analysis revealed that suppression occurred within a window lasting a few seconds from motion onset. In experiment 1, we monitored eye movements and instructed participants where to fixate. Although the percept does depend on which vertex is fixated, we ruled out a role of changes of fixation as a mediating factor for the effect of motion onset. In experiment 2, we introduced a change of position of the exploring hand as a new type of transition. This type of change did not produce the same inhibition generated by the motion onset. We conclude that motion onset does not simply draw attention towards haptic information. Rather, the influence of haptics peaks briefly after new information becomes available.

PubMed: 20402242

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pubmed:20402242

Le document en format XML

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<front><div type="abstract" xml:lang="en">When looking monocularly at a three-dimensional (3-D) Necker cube two percepts alternate: a cube and a truncated pyramid. The latter is due to a depth reversal. We studied the effect of haptic information by having participants hold the cube with their hands and explore two of its vertices. Touch reduces the likelihood of the pyramid, consistent with a multisensory view of 3-D form perception. In addition, when the hand alternates between stationary and haptic exploration, the onset of the hand movement plays a crucial role in inhibiting reversals. A temporal analysis revealed that suppression occurred within a window lasting a few seconds from motion onset. In experiment 1, we monitored eye movements and instructed participants where to fixate. Although the percept does depend on which vertex is fixated, we ruled out a role of changes of fixation as a mediating factor for the effect of motion onset. In experiment 2, we introduced a change of position of the exploring hand as a new type of transition. This type of change did not produce the same inhibition generated by the motion onset. We conclude that motion onset does not simply draw attention towards haptic information. Rather, the influence of haptics peaks briefly after new information becomes available.</div>
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<Abstract><AbstractText>When looking monocularly at a three-dimensional (3-D) Necker cube two percepts alternate: a cube and a truncated pyramid. The latter is due to a depth reversal. We studied the effect of haptic information by having participants hold the cube with their hands and explore two of its vertices. Touch reduces the likelihood of the pyramid, consistent with a multisensory view of 3-D form perception. In addition, when the hand alternates between stationary and haptic exploration, the onset of the hand movement plays a crucial role in inhibiting reversals. A temporal analysis revealed that suppression occurred within a window lasting a few seconds from motion onset. In experiment 1, we monitored eye movements and instructed participants where to fixate. Although the percept does depend on which vertex is fixated, we ruled out a role of changes of fixation as a mediating factor for the effect of motion onset. In experiment 2, we introduced a change of position of the exploring hand as a new type of transition. This type of change did not produce the same inhibition generated by the motion onset. We conclude that motion onset does not simply draw attention towards haptic information. Rather, the influence of haptics peaks briefly after new information becomes available.</AbstractText>
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Vision, haptics, and attention: new data from a multisensory Necker cube.

Vision, haptics, and attention: new data from a multisensory Necker cube.

Source :

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

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

Pour générer des pages wiki