期刊
NATURE NEUROSCIENCE
卷 19, 期 9, 页码 1250-1255出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/nn.4354
关键词
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资金
- NICHD/NIH grant [F32HD079169]
- NIH/NICHD [R01HD067312]
- Ellison Medical Foundation [EY13455]
- McGovern Institute for Brain Research MINT [1444913]
What determines the cortical location at which a given functionally specific region will arise in development? We tested the hypothesis that functionally specific regions develop in their characteristic locations because of pre-existing differences in the extrinsic connectivity of that region to the rest of the brain. We exploited the visual word form area (VWFA) as a test case, scanning children with diffusion and functional imaging at age 5, before they learned to read, and at age 8, after they learned to read. We found the VWFA developed functionally in this interval and that its location in a particular child at age 8 could be predicted from that child's connectivity fingerprints (but not functional responses) at age 5. These results suggest that early connectivity instructs the functional development of the VWFA, possibly reflecting a general mechanism of cortical development.
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