| Presentation | 2008-03-13 Somatosensory reflex is anticipatorily modulated according to dynamical environments during movements Toshitaka KIMURA, Hiroaki GOMI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Somatosensory reflex during movement is known to be modulated according to given tasks and environments anticipatorily, before movement initiation. It is unclear, however, whether the reflex gain setting is completed before movement start or the gain setting is developed in relation to a target event even after movement initiation. Here we investigated temporal feature of anticipatory reflex gain modulation when subjects performed planar reaching movement with different force fields in the later part of movement. Arm reflex response was induced by a small perturbation at several timings before the arm encountered the force field, after movement start. We found clearer reflex gain modulation according to the force field directions as the perturbation was applied closer the force fields. An additional experiment further showed that the reflex modulation was developed in relation to the temporal distance to the force fields rather than the spatial distance. These findings suggest that somatosensory reflex gain is set in time domain for upcoming dynamical environment, independently of movement execution. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Somatosensory reflex / Reflex gain modulation / Temporal feature / Anticipation |
| Paper # | NC2007-167 |
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| Committee | NC |
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| Conference Date | 2008/3/5(1days) |
| Place (in Japanese) | (See Japanese page) |
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| 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) | Somatosensory reflex is anticipatorily modulated according to dynamical environments during movements |
| Sub Title (in English) | |
| Keyword(1) | Somatosensory reflex |
| Keyword(2) | Reflex gain modulation |
| Keyword(3) | Temporal feature |
| Keyword(4) | Anticipation |
| 1st Author's Name | Toshitaka KIMURA |
| 1st Author's Affiliation | NTT Communication Science Laboratories() |
| 2nd Author's Name | Hiroaki GOMI |
| 2nd Author's Affiliation | NTT Communication Science Laboratories:ERATO Shimojo Implicit Brain Function Project |
| Date | 2008-03-13 |
| Paper # | NC2007-167 |
| Volume (vol) | vol.107 |
| Number (no) | 542 |
| Page | pp.pp.- |
| #Pages | 6 |
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