2012 Fiscal Year Final Research Report
Alpha rythms in the brain related with time information processing
| Project/Area Number |
23650139
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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 |
Cognitive science
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| Research Institution | Osaka University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
NAKANO Tamami 大阪大学, 生命機能研究科, 准教授 (90589201)
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| Project Period (FY) |
2011 – 2012
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| Keywords | 感覚 / 知覚 / 注意 / 脳波 / リズム |
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| Research Abstract |
We aimed to test an “alpha rhythm hypothesis” that the 10-Hz alpha rhythm is the basic mode for temporal information processing in the brain, by developing a method to synchronize brain activity to a specific frequency. In some participants, we found that the correct response rate in the temporal order judgment of two successive stimuli depended on the phase of alternate currents applied transcranially with an alpha band frequency. In a control experiment without current application, we found in addition that the temporal order judgment depended on the phase difference between the two hemispheres.
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