| Presentation | 2006/10/19 Trial to estimate visual perception from cortical NIRS signal Masamitsu HARASAWA, Nobuyuki HIRUMA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | It usually seems difficult to infer situations of perceptual information processing from only brain activities. We tried to estimate subjects' perception by using classification techniques that seems useful for brain-machine interface (BMI). Near infrared spectroscopy (NIRS) seems suitable for applicative BMI, since it is non-invasive, very easy to handle and maintain, and less fettered. Here, we tried to decode the visual stimuli that subjects viewed in detecting visual motion by classification using support vector machine from cerebral hemodynamic responses measured by NIRS. We investigated the effect of spatiotemporal features of NIRS signals on classification performances. Consequently, it was suggested that task related components could be extracted from NIRS signals in particular temporal frequency bands, which varied with brain regions. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Near-infrared spectroscopy / classification / decoding / coherent motion |
| Paper # | HIP2006-55 |
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| Conference Information | |
| Committee | HIP |
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| Conference Date | 2006/10/19(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Vice Chair | |
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| Paper Information | |
| 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) | Trial to estimate visual perception from cortical NIRS signal |
| Sub Title (in English) | |
| Keyword(1) | Near-infrared spectroscopy |
| Keyword(2) | classification |
| Keyword(3) | decoding |
| Keyword(4) | coherent motion |
| 1st Author's Name | Masamitsu HARASAWA |
| 1st Author's Affiliation | Science & Technical Research Laboratories() |
| 2nd Author's Name | Nobuyuki HIRUMA |
| 2nd Author's Affiliation | Science & Technical Research Laboratories |
| Date | 2006/10/19 |
| Paper # | HIP2006-55 |
| Volume (vol) | vol.106 |
| Number (no) | 328 |
| Page | pp.pp.- |
| #Pages | 5 |
| Date of Issue | |