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. 2018 Oct 24;9:522. doi: 10.3389/fpsyt.2018.00522

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Copyright © 2018 Niida, Yamagata, Niida, Uechi, Matsuda and Mimura.

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) and the copyright owner(s) 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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Method of setting down an indicated FA threshold. (A) A DTT image taken with a default FA threshold of 0.15 at the termination of fiber tracking. The ATR is well tracked all the way to the brain surface. (B) A DTT image taken with an FA threshold of 0.39 at the termination of fiber tracking. The ATR cannot be tracked all the way to the brain surface, and disappears halfway (arrows). The FA value at this point was defined as the FA threshold. DTT, diffusion tensor tractography; ATR, anterior thalamic radiation; FA, fractional anisotropy; A, anterior; P, posterior; L, left; R, right.