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. 2018 Nov 6;9:1557. doi: 10.3389/fphys.2018.01557

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Copyright © 2018 Daneault, Dumont, Massé, Forcier, Boré, Lina, Doyon, Vandewalle and Carrier.

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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Behavioral results. For each panel (A–E), results represent mean ± standard error of the mean (SEM) for both light conditions. (A) Score on the Karolinska (KSS) sleepiness scale before the fMRI session. (B) Score on the State Anxiety questionnaire (STAI-S) after each fMRI session. (C) Dilated absolute pupil size (mm) after each fMRI session. (D) Accuracy on the 2b and 0b tasks when all subjects are pooled together. (E) Response time to 2b and 0b tasks when all subjects are pooled together;^∗ indicates significant differences between groups or light conditions.