| Presentation | 2004/1/20 Contribution of motor cortex to anticipatory modulation of reflexive sensorimotor processing (Neurocomputing) Toshitaka KIMURA, Hiroaki GOMI, Naoki SAIJO, Patrick HAGGARD, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Several studies suggested that, during arm movement with unstable external dynamics in a particular direction, arm stiffness increase in unstable direction and change in muscle reflexive activity contribute to alter the arm stiffness. It is unclear, however, that whether such change in reflexive activity depend on the extent of external dynamics and/or where it is represented in central nervous system. To examine these issues, in this study, we measured muscle reflexive activity induced by a small mechanical perturbation before the arm encountered a constant force field with different direction, with or without single transcranial magnetic stimulation of motor cortex, which was applied 50ms before the perturbation to disturb muscle reflexive activity. As a result, we found that 1) muscle reflexive activity was pertinently changed according to the force field direction, and that 2) its change was diminished by applying transcranial magnetic stimulation, suggesting that reflexive sensorimotor processing was predictively and functionally modulated according to expected dynamical interaction and that motor cortex contributes its processing. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Arm movement control / Interaction / Reflex / Motor cortex / Transcranial magnetic stimulation |
| Paper # | NC2003-127 |
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| Conference Information | |
| Committee | NC |
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| Conference Date | 2004/1/20(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Neurocomputing (NC) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Contribution of motor cortex to anticipatory modulation of reflexive sensorimotor processing (Neurocomputing) |
| Sub Title (in English) | |
| Keyword(1) | Arm movement control |
| Keyword(2) | Interaction |
| Keyword(3) | Reflex |
| Keyword(4) | Motor cortex |
| Keyword(5) | Transcranial magnetic stimulation |
| 1st Author's Name | Toshitaka KIMURA |
| 1st Author's Affiliation | NTT Communication Science Labs.() |
| 2nd Author's Name | Hiroaki GOMI |
| 2nd Author's Affiliation | NTT Communication Science Labs.:Interdisciplinary Grad. Sch. of Sci. & Eng., Univ. Tokyo Inst. of Tech. |
| 3rd Author's Name | Naoki SAIJO |
| 3rd Author's Affiliation | NTT Communication Science Labs. |
| 4th Author's Name | Patrick HAGGARD |
| 4th Author's Affiliation | University College London |
| Date | 2004/1/20 |
| Paper # | NC2003-127 |
| Volume (vol) | vol.103 |
| Number (no) | 602 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |