| Budget Amount *help |
¥24,180,000 (Direct Cost: ¥18,600,000、Indirect Cost: ¥5,580,000)
Fiscal Year 2020: ¥6,890,000 (Direct Cost: ¥5,300,000、Indirect Cost: ¥1,590,000)
Fiscal Year 2019: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2018: ¥6,890,000 (Direct Cost: ¥5,300,000、Indirect Cost: ¥1,590,000)
Fiscal Year 2017: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
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| Outline of Final Research Achievements |
We investigated anatomical basis for conduction velocity in living humans by combining magnetoencephalography (MEG), diffusion MRI (dMRI), and quantitative MRI (qMRI). We evaluated how much tissue properties of the optic radiation measured by MRI can predict inter-individual variability of latency of early visually evoked response derived from the primary visual cortex measured by MEG. We found that the tissue properties of the optic radiation can explain a part of variabilities in latency of early visually evoked response. In addition, we also investigated polarized light imaging data of ex vivo vervet monkey visual system to reveal underlying complexities of fiber pathways at micrometer resolution. We found that the optic radiation includes axons derived from multiple subcortical nuclei, suggesting that such complexity may limit an accuracy of latency prediction solely from MRI-based measurements.
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