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原文連結
論文資訊
- 類型：已發表論文
- 日期：2020-01-15
摘要
In systems neuroscience, most models posit that 大腦 regions communicate 資訊 under constraints of efficiency. Yet, metabolic and 資訊 transfer efficiency across structural 網絡s are not understood. In a large cohort of youth, we find metabolic costs associated with structural path strengths supporting 資訊 擴散. 代謝 is balanced with the coupling of structures supporting 擴散 and 網絡 modularity. To understand efficient 網絡 communication, we develop a theory specifying minimum rates of message 擴散 that 大腦 regions should transmit for an expected fidelity, and we test five predictions from the theory. We introduce compression efficiency, which quantifies differing trade-offs between lossy compression and communication fidelity in structural 網絡s. Compression efficiency evolves with development, heightens when m
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