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. 2018 Oct 31;9:2087. doi: 10.3389/fpsyg.2018.02087

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Copyright © 2018 Hong, Fallon, Friston and Harris.

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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Hemispheric differences in REM-locked activation. Voxels with greater REM-locked activity compared to its homolog in the other hemisphere are shown. All images are thresholded at uncorrected P < 0.001 (T = 3.5) and additionally at a spatial extent of >5 contiguous voxels. (A) Orthogonally oriented statistical parametric maps (maximum intensity projections). REM-locked activation was greater in the posterior left hemisphere. (B) Cross at the greatest hemispheric difference, supplementary eye field (SEF) (left greater than right). The left supplementary eye field has a clearly predominant role in sequencing saccade programming during visual scanning in wakefulness. Adapted from Hong et al. (2009) with the permission from Hong.