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. 2021 Oct 21;12:745330. doi: 10.3389/fneur.2021.745330

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Copyright © 2021 Mountney, Blaze, Wang, Umali, Flerlage, Dougherty, Ge, Shear and Haghighi.

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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Sleep parameters for contralateral and ipsilateral hemispheres in sham and PBBI animals in the light phase during the acute post-injury period. Time spent in each vigilance state was collapsed over 12 h bins and compared between hemispheres and injury groups. (A) PBBI rats showed significant increases in NREM sleep with accompanying decreases in REM sleep, (B) shorter periods of wake after sleep onset (WASO), (C) fewer sleep stage transitions, (D) fewer sleep stage bouts, and (E) increased mean bout duration during NREM sleep (ipsilateral side only). Significant changes were more prevalent on the ipsilateral side. N=6 PBBI / 5 sham. All data are depicted as the mean ± SEM. WASO: wake after sleep onset (***p < 0.001, **p < 0.01, *p < 0.05).