| Presentation | 2003/3/11 Multimodal spatial information (vision, tactile, and proprioception) processing in the human brain mesured by fMRI Masaya MISAKI, Eriko MATSUMOTO, Satoru MIYAUCHI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Recognizing the spatial position of an object requires integrating many sources of information such as visual, tactile, proprioceptive, etc. In this study, we investigated the brain activation with functional Magnetic Resonance Imaging (fMRI) when matching the position of a visual and a tactile stimulus in different postures (crossed or uncrossed hands). Participants were asked to judge whether a visual stimulus and a tactile stimulus presented to an index finger were on the same sides or different sides in three conditions. In the 'Uncrossed' condition, participants did not cross their hands. In the 'Crossed-hand' condition, they crossed their hands and judged the side of the tactile stimulus based on which hand was stimulated. In the 'Crossed-body' condition, they also crossed their hands but judged the side of tactile stimulus based on the side of the body. Reaction time was the shortest in the uncrossed condition, and when crossing hands, judgments based on the body side had a shorter reaction time than judgments based on the stimulated hand. Brain activations that were more strongly activated in the crossed hands conditions were seen in the dorsal visual cortex (BA18/19) and the medial part of the posterior parietal region (BA7). The activation increase in the visual cortex by crossing hands suggests the reciprocal process across different modalities in spatial recognition. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | spatial recognition / fMRI / cross modal / vision / tactile |
| Paper # | HIP2002-75 |
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| Conference Information | |
| Committee | HIP |
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| Conference Date | 2003/3/11(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| Registration To | Human Information Processing (HIP) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Multimodal spatial information (vision, tactile, and proprioception) processing in the human brain mesured by fMRI |
| Sub Title (in English) | |
| Keyword(1) | spatial recognition |
| Keyword(2) | fMRI |
| Keyword(3) | cross modal |
| Keyword(4) | vision |
| Keyword(5) | tactile |
| 1st Author's Name | Masaya MISAKI |
| 1st Author's Affiliation | Brain Information Group, Communications Research Laboratory() |
| 2nd Author's Name | Eriko MATSUMOTO |
| 2nd Author's Affiliation | Brain Information Group, Communications Research Laboratory |
| 3rd Author's Name | Satoru MIYAUCHI |
| 3rd Author's Affiliation | Brain Information Group, Communications Research Laboratory |
| Date | 2003/3/11 |
| Paper # | HIP2002-75 |
| Volume (vol) | vol.102 |
| Number (no) | 735 |
| Page | pp.pp.- |
| #Pages | 6 |
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