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. 2017 Apr 19;11:214. doi: 10.3389/fnins.2017.00214

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Copyright © 2017 Lu, Liu, Lu, Tang, Tie, Zhang and Yuan.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Group comparison of global network topological properties (C_p, L_p, E_glo, E_loc, λ, γ, and σ) between the IS and NIS group (two-sample t-tests, p < 0.05, uncorrected). The small-worldness suggests a small-world topology for functional brain networks of both the IS and NIS group. The error bar represents the standard deviation (SD). Cp, clustering coefficient; Lp, path length; E_glo, global efficiency; E_loc, local efficiency. IS, healthy participants with insomnia symptoms, NIS, healthy participants without insomnia symptoms.