Am I seeing my hand? Visual appearance and knowledge of controllability both contribute to the visual capture of a person's own body
Identifieur interne : 002603 ( Main/Merge ); précédent : 002602; suivant : 002604Am I seeing my hand? Visual appearance and knowledge of controllability both contribute to the visual capture of a person's own body
Auteurs : Nobuhiro Hagura [Japon, Royaume-Uni] ; Satoshi Hirose [Japon] ; Michikazu Matsumura [Japon] ; Eiichi Naito [Japon]Source :
- Proceedings of the Royal Society B: Biological Sciences [ 0962-8452 ] ; 2012.
Abstract
When confronted with complex visual scenes in daily life, how do we know which visual information represents our own hand? We investigated the cues used to assign visual information to one's own hand. Wrist tendon vibration elicits an illusory sensation of wrist movement. The intensity of this illusion attenuates when the actual motionless hand is visually presented. Testing what kind of visual stimuli attenuate this illusion will elucidate factors contributing to visual detection of one's own hand. The illusion was reduced when a stationary object was shown, but only when participants knew it was controllable with their hands. In contrast, the visual image of their own hand attenuated the illusion even when participants knew that it was
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DOI: 10.1098/rspb.2012.0750
PubMed: 22648159
PubMed Central: 3396906
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Visual appearance and knowledge of controllability both contribute to the visual capture of a person's own body</title><author><name sortKey="Hagura, Nobuhiro" sort="Hagura, Nobuhiro" uniqKey="Hagura N" first="Nobuhiro" last="Hagura">Nobuhiro Hagura</name><affiliation wicri:level="1"><nlm:aff id="af1"><institution>ATR Brain Information Communication Research Laboratory Group</institution>,<addr-line>Kyoto 619-0288</addr-line>,<country>Japan</country></nlm:aff><country xml:lang="fr">Japon</country><wicri:regionArea># see nlm:aff country strict</wicri:regionArea></affiliation><affiliation wicri:level="1"><nlm:aff id="af2"><addr-line>Institute of Cognitive Neuroscience</addr-line>,<institution>University College London</institution>,<addr-line>London WC1N 3AR</addr-line>,<country>UK</country></nlm:aff><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea># see nlm:aff country strict</wicri:regionArea></affiliation></author><author><name sortKey="Hirose, Satoshi" sort="Hirose, Satoshi" uniqKey="Hirose S" first="Satoshi" last="Hirose">Satoshi Hirose</name><affiliation wicri:level="1"><nlm:aff id="af1"><institution>ATR Brain Information Communication Research Laboratory Group</institution>,<addr-line>Kyoto 619-0288</addr-line>,<country>Japan</country></nlm:aff><country xml:lang="fr">Japon</country><wicri:regionArea># see nlm:aff country strict</wicri:regionArea></affiliation></author><author><name sortKey="Matsumura, Michikazu" sort="Matsumura, Michikazu" uniqKey="Matsumura M" first="Michikazu" last="Matsumura">Michikazu Matsumura</name><affiliation wicri:level="1"><nlm:aff id="af3"><addr-line>Graduate School of Human and Environmental Studies</addr-line>,<institution>Kyoto University</institution>,<addr-line>Kyoto 606-8501</addr-line>,<country>Japan</country></nlm:aff><country xml:lang="fr">Japon</country><wicri:regionArea># see nlm:aff country strict</wicri:regionArea></affiliation></author><author><name sortKey="Naito, Eiichi" sort="Naito, Eiichi" uniqKey="Naito E" first="Eiichi" last="Naito">Eiichi Naito</name><affiliation wicri:level="1"><nlm:aff id="af4"><addr-line>CiNet</addr-line>,<institution>National Institute of Information and Communications Technology</institution>,<addr-line>Kyoto 619-0288</addr-line>,<country>Japan</country></nlm:aff><country xml:lang="fr">Japon</country><wicri:regionArea># see nlm:aff country strict</wicri:regionArea></affiliation><affiliation wicri:level="1"><nlm:aff id="af5"><addr-line>Graduate School of Medicine</addr-line>,<institution>Osaka University</institution>,<addr-line>Osaka 565-0871</addr-line>,<country>Japan</country></nlm:aff><country xml:lang="fr">Japon</country><wicri:regionArea># see nlm:aff country strict</wicri:regionArea></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">22648159</idno><idno type="pmc">3396906</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3396906</idno><idno type="RBID">PMC:3396906</idno><idno type="doi">10.1098/rspb.2012.0750</idno><date when="2012">2012</date><idno type="wicri:Area/Pmc/Corpus">002452</idno><idno type="wicri:Area/Pmc/Curation">002452</idno><idno type="wicri:Area/Pmc/Checkpoint">001860</idno><idno type="wicri:Area/Ncbi/Merge">002046</idno><idno type="wicri:Area/Ncbi/Curation">002046</idno><idno type="wicri:Area/Ncbi/Checkpoint">002046</idno><idno type="wicri:doubleKey">0962-8452:2012:Hagura N:am:i:seeing</idno><idno type="wicri:Area/Main/Merge">002603</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Am I seeing my hand? Visual appearance and knowledge of controllability both contribute to the visual capture of a person's own body</title><author><name sortKey="Hagura, Nobuhiro" sort="Hagura, Nobuhiro" uniqKey="Hagura N" first="Nobuhiro" last="Hagura">Nobuhiro Hagura</name><affiliation wicri:level="1"><nlm:aff id="af1"><institution>ATR Brain Information Communication Research Laboratory Group</institution>,<addr-line>Kyoto 619-0288</addr-line>,<country>Japan</country></nlm:aff><country xml:lang="fr">Japon</country><wicri:regionArea># see nlm:aff country strict</wicri:regionArea></affiliation><affiliation wicri:level="1"><nlm:aff id="af2"><addr-line>Institute of Cognitive Neuroscience</addr-line>,<institution>University College London</institution>,<addr-line>London WC1N 3AR</addr-line>,<country>UK</country></nlm:aff><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea># see nlm:aff country strict</wicri:regionArea></affiliation></author><author><name sortKey="Hirose, Satoshi" sort="Hirose, Satoshi" uniqKey="Hirose S" first="Satoshi" last="Hirose">Satoshi Hirose</name><affiliation wicri:level="1"><nlm:aff id="af1"><institution>ATR Brain Information Communication Research Laboratory Group</institution>,<addr-line>Kyoto 619-0288</addr-line>,<country>Japan</country></nlm:aff><country xml:lang="fr">Japon</country><wicri:regionArea># see nlm:aff country strict</wicri:regionArea></affiliation></author><author><name sortKey="Matsumura, Michikazu" sort="Matsumura, Michikazu" uniqKey="Matsumura M" first="Michikazu" last="Matsumura">Michikazu Matsumura</name><affiliation wicri:level="1"><nlm:aff id="af3"><addr-line>Graduate School of Human and Environmental Studies</addr-line>,<institution>Kyoto University</institution>,<addr-line>Kyoto 606-8501</addr-line>,<country>Japan</country></nlm:aff><country xml:lang="fr">Japon</country><wicri:regionArea># see nlm:aff country strict</wicri:regionArea></affiliation></author><author><name sortKey="Naito, Eiichi" sort="Naito, Eiichi" uniqKey="Naito E" first="Eiichi" last="Naito">Eiichi Naito</name><affiliation wicri:level="1"><nlm:aff id="af4"><addr-line>CiNet</addr-line>,<institution>National Institute of Information and Communications Technology</institution>,<addr-line>Kyoto 619-0288</addr-line>,<country>Japan</country></nlm:aff><country xml:lang="fr">Japon</country><wicri:regionArea># see nlm:aff country strict</wicri:regionArea></affiliation><affiliation wicri:level="1"><nlm:aff id="af5"><addr-line>Graduate School of Medicine</addr-line>,<institution>Osaka University</institution>,<addr-line>Osaka 565-0871</addr-line>,<country>Japan</country></nlm:aff><country xml:lang="fr">Japon</country><wicri:regionArea># see nlm:aff country strict</wicri:regionArea></affiliation></author></analytic><series><title level="j">Proceedings of the Royal Society B: Biological Sciences</title><idno type="ISSN">0962-8452</idno><idno type="eISSN">1471-2954</idno><imprint><date when="2012">2012</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><p>When confronted with complex visual scenes in daily life, how do we know which visual information represents our own hand? We investigated the cues used to assign visual information to one's own hand. Wrist tendon vibration elicits an illusory sensation of wrist movement. The intensity of this illusion attenuates when the actual motionless hand is visually presented. Testing what kind of visual stimuli attenuate this illusion will elucidate factors contributing to visual detection of one's own hand. The illusion was reduced when a stationary object was shown, but only when participants knew it was controllable with their hands. In contrast, the visual image of their own hand attenuated the illusion even when participants knew that it was <italic>not</italic> controllable. 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