Immediate tool incorporation processes determine human motor planning with tools
Identifieur interne : 001133 ( Main/Merge ); précédent : 001132; suivant : 001134Immediate tool incorporation processes determine human motor planning with tools
Auteurs : G. Ganesh [Japon] ; T. Yoshioka [Japon] ; R. Osu [Japon] ; T. Ikegami [Japon]Source :
- Nature Communications [ 2041-1723 ] ; 2014.
Abstract
Human dexterity with tools is believed to stem from our ability to incorporate and use tools as parts of our body. However tool incorporation, evident as extensions in our body representation and peri-personal space, has been observed predominantly after extended tool exposures and does not explain our immediate motor behaviours when we change tools. Here we utilize two novel experiments to elucidate the presence of additional immediate tool incorporation effects that determine motor planning with tools. Interestingly, tools were observed to immediately induce a trial-by-trial, tool length dependent shortening of the perceived limb lengths, opposite to observations of elongations after extended tool use. Our results thus exhibit that tools induce a dual effect on our body representation; an immediate shortening that critically affects motor planning with a new tool, and the slow elongation, probably a consequence of skill related changes in sensory-motor mappings with the repeated use of the tool.
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DOI: 10.1038/ncomms5524
PubMed: 25020075
PubMed Central: 4279266
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Ganesh</name><affiliation wicri:level="1"><nlm:aff id="a1"><institution>Center for Information and Neural Networks (CiNet), National Institute of Information and Communications Technology, 1-4 Yamadaoka, Osaka University Campus</institution>, Suita 5650871,<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="a2"><institution>CNRS-AIST JRL (Joint Robotics Laboratory), UMI3218/CRT, Intelligent Systems Research Institute, National Institute of Advanced Industrial Science and Technology (AIST) Tsukuba Central 2, 1-1-1 Umezono, Tsukuba</institution>, Ibaraki 305-8568,<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="Yoshioka, T" sort="Yoshioka, T" uniqKey="Yoshioka T" first="T." last="Yoshioka">T. Yoshioka</name><affiliation wicri:level="1"><nlm:aff id="a3"><institution>ATR Brain Information Communications research Laboratories, 2-2-2 Hikaridai, Seika-cho, Soraku-gun</institution>, Kyoto 6190288,<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="Osu, R" sort="Osu, R" uniqKey="Osu R" first="R." last="Osu">R. Osu</name><affiliation wicri:level="1"><nlm:aff id="a3"><institution>ATR Brain Information Communications research Laboratories, 2-2-2 Hikaridai, Seika-cho, Soraku-gun</institution>, Kyoto 6190288,<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="Ikegami, T" sort="Ikegami, T" uniqKey="Ikegami T" first="T." last="Ikegami">T. Ikegami</name><affiliation wicri:level="1"><nlm:aff id="a1"><institution>Center for Information and Neural Networks (CiNet), National Institute of Information and Communications Technology, 1-4 Yamadaoka, Osaka University Campus</institution>, Suita 5650871,<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">Nature Communications</title><idno type="eISSN">2041-1723</idno><imprint><date when="2014">2014</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><p>Human dexterity with tools is believed to stem from our ability to incorporate and use tools as parts of our body. However tool incorporation, evident as extensions in our body representation and peri-personal space, has been observed predominantly after extended tool exposures and does not explain our immediate motor behaviours when we change tools. Here we utilize two novel experiments to elucidate the presence of additional immediate tool incorporation effects that determine motor planning with tools. Interestingly, tools were observed to immediately induce a trial-by-trial, tool length dependent shortening of the perceived limb lengths, opposite to observations of elongations after extended tool use. Our results thus exhibit that tools induce a dual effect on our body representation; an immediate shortening that critically affects motor planning with a new tool, and the slow elongation, probably a consequence of skill related changes in sensory-motor mappings with the repeated use of the tool.</p></div></front><back><div1 type="bibliography"><listBibl><biblStruct><analytic><author><name sortKey="Head, H" uniqKey="Head H">H. Head</name></author><author><name sortKey="Holmes, G" uniqKey="Holmes G">G. Holmes</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Berti, A" uniqKey="Berti A">A. Berti</name></author><author><name sortKey="Frassinetti, F" uniqKey="Frassinetti F">F. Frassinetti</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Maravita, A" uniqKey="Maravita A">A. Maravita</name></author><author><name sortKey="Iriki, A" uniqKey="Iriki A">A. 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S. Sutton</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Ernst, M O" uniqKey="Ernst M">M. O. Ernst</name></author><author><name sortKey="Banks, M S" uniqKey="Banks M">M. S. Banks</name></author></analytic></biblStruct></listBibl></div1></back></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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