HapticV1, PubMed, Corpus, bibRecord, 001839

The combination of vision and touch depends on spatial proximity.

Identifieur interne : 001839 ( PubMed/Corpus ); précédent : 001838; suivant : 001840

The combination of vision and touch depends on spatial proximity.

Auteurs : Sergei Gepshtein ; Johannes Burge ; Marc O. Ernst ; Martin S. Banks

Source :

Journal of vision [ 1534-7362 ] ; 2005.

RBID : pubmed:16441199

English descriptors

KwdEn :
- Adult, Discrimination (Psychology) (physiology), Humans, Male, Models, Psychological, Nervous System Physiological Phenomena, Orientation, Photic Stimulation, Physical Stimulation, Size Perception, Space Perception (physiology), Task Performance and Analysis, Touch (physiology), Vision, Ocular (physiology).
MESH :
- physiology : Discrimination (Psychology), Space Perception, Touch, Vision, Ocular.
- Adult, Humans, Male, Models, Psychological, Nervous System Physiological Phenomena, Orientation, Photic Stimulation, Physical Stimulation, Size Perception, Task Performance and Analysis.

Abstract

The nervous system often combines visual and haptic information about object properties such that the combined estimate is more precise than with vision or haptics alone. We examined how the system determines when to combine the signals. Presumably, signals should not be combined when they come from different objects. The likelihood that signals come from different objects is highly correlated with the spatial separation between the signals, so we asked how the spatial separation between visual and haptic signals affects their combination. To do this, we first created conditions for each observer in which the effect of combination--the increase in discrimination precision with two modalities relative to performance with one modality--should be maximal. Then under these conditions, we presented visual and haptic stimuli separated by different spatial distances and compared human performance with predictions of a model that combined signals optimally. We found that discrimination precision was essentially optimal when the signals came from the same location, and that discrimination precision was poorer when the signals came from different locations. Thus, the mechanism of visual-haptic combination is specialized for signals that coincide in space.

DOI: 10.1167/5.11.7
PubMed: 16441199

Links to Exploration step

pubmed:16441199

Le document en format XML

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<author><name sortKey="Gepshtein, Sergei" sort="Gepshtein, Sergei" uniqKey="Gepshtein S" first="Sergei" last="Gepshtein">Sergei Gepshtein</name>
<affiliation><nlm:affiliation>Vision Science Program, School of Optometry, University of California, Berkeley, CA, USA. sergei@brain.riken.jp</nlm:affiliation>
</affiliation>
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<author><name sortKey="Burge, Johannes" sort="Burge, Johannes" uniqKey="Burge J" first="Johannes" last="Burge">Johannes Burge</name>
</author>
<author><name sortKey="Ernst, Marc O" sort="Ernst, Marc O" uniqKey="Ernst M" first="Marc O" last="Ernst">Marc O. Ernst</name>
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<author><name sortKey="Banks, Martin S" sort="Banks, Martin S" uniqKey="Banks M" first="Martin S" last="Banks">Martin S. Banks</name>
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<sourceDesc><biblStruct><analytic><title xml:lang="en">The combination of vision and touch depends on spatial proximity.</title>
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<author><name sortKey="Burge, Johannes" sort="Burge, Johannes" uniqKey="Burge J" first="Johannes" last="Burge">Johannes Burge</name>
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<author><name sortKey="Ernst, Marc O" sort="Ernst, Marc O" uniqKey="Ernst M" first="Marc O" last="Ernst">Marc O. Ernst</name>
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<author><name sortKey="Banks, Martin S" sort="Banks, Martin S" uniqKey="Banks M" first="Martin S" last="Banks">Martin S. Banks</name>
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<front><div type="abstract" xml:lang="en">The nervous system often combines visual and haptic information about object properties such that the combined estimate is more precise than with vision or haptics alone. We examined how the system determines when to combine the signals. Presumably, signals should not be combined when they come from different objects. The likelihood that signals come from different objects is highly correlated with the spatial separation between the signals, so we asked how the spatial separation between visual and haptic signals affects their combination. To do this, we first created conditions for each observer in which the effect of combination--the increase in discrimination precision with two modalities relative to performance with one modality--should be maximal. Then under these conditions, we presented visual and haptic stimuli separated by different spatial distances and compared human performance with predictions of a model that combined signals optimally. We found that discrimination precision was essentially optimal when the signals came from the same location, and that discrimination precision was poorer when the signals came from different locations. Thus, the mechanism of visual-haptic combination is specialized for signals that coincide in space.</div>
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</CommentsCorrections>
<CommentsCorrections RefType="Cites"><RefSource>Vision Res. 1995 Feb;35(3):389-412</RefSource>
<PMID Version="1">7892735</PMID>
</CommentsCorrections>
<CommentsCorrections RefType="Cites"><RefSource>Cogn Psychol. 1998 Feb;35(1):71-98</RefSource>
<PMID Version="1">9520318</PMID>
</CommentsCorrections>
<CommentsCorrections RefType="Cites"><RefSource>Exp Brain Res. 2005 Apr;162(2):172-80</RefSource>
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<CommentsCorrections RefType="Cites"><RefSource>Neuron. 1999 Sep;24(1):7-9, 111-25</RefSource>
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<CommentsCorrections RefType="Cites"><RefSource>Nature. 2000 Dec 14;408(6814):788</RefSource>
<PMID Version="1">11130706</PMID>
</CommentsCorrections>
<CommentsCorrections RefType="Cites"><RefSource>Vision Res. 2001 Mar;41(6):711-24</RefSource>
<PMID Version="1">11248261</PMID>
</CommentsCorrections>
<CommentsCorrections RefType="Cites"><RefSource>Nature. 2002 Jan 24;415(6870):429-33</RefSource>
<PMID Version="1">11807554</PMID>
</CommentsCorrections>
<CommentsCorrections RefType="Cites"><RefSource>Curr Biol. 2002 May 14;12(10):834-7</RefSource>
<PMID Version="1">12015120</PMID>
</CommentsCorrections>
<CommentsCorrections RefType="Cites"><RefSource>J Vis. 2002;2(4):324-53</RefSource>
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	Serveur d'exploration sur les dispositifs haptiques
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The combination of vision and touch depends on spatial proximity.

The combination of vision and touch depends on spatial proximity.

Source :

English descriptors

Abstract

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