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. 2018 May 16;9:742. doi: 10.3389/fpsyg.2018.00742

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Copyright © 2018 Yeung, Lee, Cheung and Chan.

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 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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t-Contrast maps of the mean working-memory-related (WM-related, i.e., 3-back > 0-back) [oxy-Hb] and [deoxy-Hb] changes in the (A) Sufficient Sleep (SS; n = 20) and (B) Insufficient Sleep (IS; n = 20) groups and (C) between the SS and IS groups. For the top panels of (A,B), red and blue indicate WM-related [oxy-Hb] increases and decreases, respectively; for the bottom panels of (A,B), red and blue indicate WM-related [deoxy-Hb] increases and decreases, respectively. In addition, for the top panel of (C), red indicates greater WM-related [oxy-Hb] increases in the SS group; for the bottom panel of (C), blue indicates greater WM-related [deoxy-Hb] decreases in the SS group.