| Presentation | 2006-11-22 An automatic identification and removal method of eyeblink artifacts in magnetoencephalographic measurements Yusuke OKADA, Jiuk JUNG, Tetsuo KOBAYASHI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Magnetoencephalography (MEG) is one of noninvasive methods to investigate human brain activity with high temporal resolution. While measuring of event-related MEGs using visual stimuli, there must exist eyeblinks, which generate large magnetic artifacts on the MEGs. Therefore, the signal-to-noise ratio of the event-related signals would be reduced. In this study, a method for removing artifacts using pricipal component analysis (PCA) and independent component analysis (ICA) was discussed. Furthermore, we proposed automatic methods for artifact identification based on a cost function and validation of selected components. Tests performed on 7 subjects led to the successful identification and removal of eyeblink artifacts in all trials containing eyeblinks of all subjects. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | MEG / noise reduction / eyeblink artifact / ICA / PCA |
| Paper # | MBE2006-69 |
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| Conference Information | |
| Committee | MBE |
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| Conference Date | 2006/11/15(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | ME and Bio Cybernetics (MBE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | An automatic identification and removal method of eyeblink artifacts in magnetoencephalographic measurements |
| Sub Title (in English) | |
| Keyword(1) | MEG |
| Keyword(2) | noise reduction |
| Keyword(3) | eyeblink artifact |
| Keyword(4) | ICA |
| Keyword(5) | PCA |
| 1st Author's Name | Yusuke OKADA |
| 1st Author's Affiliation | Graduate School of Engineering, Kyoto University() |
| 2nd Author's Name | Jiuk JUNG |
| 2nd Author's Affiliation | Graduate School of Engineering, Kyoto University |
| 3rd Author's Name | Tetsuo KOBAYASHI |
| 3rd Author's Affiliation | Graduate School of Engineering, Kyoto University |
| Date | 2006-11-22 |
| Paper # | MBE2006-69 |
| Volume (vol) | vol.106 |
| Number (no) | 370 |
| Page | pp.pp.- |
| #Pages | 4 |
| Date of Issue | |