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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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Brain responses to the n-back tasks [2b-0b] irrespective of the light conditions. Statistical results (P < 0.05 FWE-whole brain) overlay the mean structural image of all participants. Significant responses to the task common to all groups are displayed in green while group differences (older-nl and older-iol > younger; younger > older-nl and older-iol) are in yellow. See Table 2 for brain regions corresponding to the letters and abbreviations. Right panels show activity estimates (arbitrary unit – a.u. ± SEM) for each brain region. ^∗ Significant group differences P < 0.05 corrected FWE-whole brain.