 | 脳磁計測と機能的磁気共鳴イメージングを用いたヒト第一次視覚野の小領域視覚刺激に対する活動の局在測定
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| | Farshad Moradi1), Lichan C. Liu1), K. Cheng3), R.Allen Waggoner3), 田中 啓治2)3), Andreas A. Ioannides1) |
| 1) 理研脳センター脳機能ダイナミクス研究チーム
2) 認知機能表現研究チーム
3) CREST·JST |
| | fMRI and MEG offer respectively precise spatial localization and very high temporal resolution of functional activity. However the spatial localization of MEG has been less certain due to the ill-posed non-uniqueness. This work investigates the spatial localization capability of MEG by comparing fMRI and MEG recordings using the same subjects and small visual stimuli provided to the visual field corresponding to a flat part of the primary visual cortex. Both dipole analysis and magnetic field tomography (MFT) were applied to the MEG data. The results show high spatiotemporal resolution using MEG. |
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