2017 Fiscal Year Final Research Report
Challenge to a novel measurement method of brain functions by detecting neural magnetic fields with ultra-high-sensitivity optical magnetic sensors
| Project/Area Number |
16K13114
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Brain biometrics
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| Research Institution | Kyoto University |
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Principal Investigator |
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| Project Period (FY) |
2016-04-01 – 2018-03-31
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| Keywords | 脳機能 / 原子磁気センサ / MEG / fMRI |
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| Outline of Final Research Achievements |
Towards novel measurement methods of neural activities based on tiny magnetic fields generated from them, we fabricated a high-sensitivity multi-channel optically pumped atomic magnetometer with a K-Rb hybrid cell. We demonstrate that high-density measurements of the magnetic field distributions with the interval of 4 mm could be achieved. Meanwhile, we developed a spin-lock MR sequence and were able to detect oscillatory magnetic fields directly with is as the change in MR signals. In addition, we showed the possibility of the direct measurement of functional connectivity based on MR signal contrasts depending on initial phases.
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| Free Research Field |
脳計測科学
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