| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2014: ¥130,000 (Direct Cost: ¥100,000、Indirect Cost: ¥30,000)
Fiscal Year 2013: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2012: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
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| Outline of Final Research Achievements |
It is necessary to estimate the noise level in the brain to provide direct evidence that stochastic resonance within the brain can enhance behavioral responses to weak sensory inputs. However, our computer simulations of source current estimation from electroencephalography (EEG) show that it is difficult to accurately estimate it. Then, psychophysical experiments were performed to obtain evidence that transcranial random noise stimulation modulates the noise level in the brain. Results suggest that it does, but more experimental data are necessary to support it. Finally, EEG recordings during transcranial magnetic stimulation (TMS) of 3 nodes of resting state networks were performed. Several TMS-related artifact rejection methods were compared, and whether each network started to oscillate at its own natural frequency just after TMS was applied was examined.
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