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. 2022 Apr 7;16:866971. doi: 10.3389/fnins.2022.866971

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Copyright © 2022 Berro, Overton and Rowlett.

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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Percentage (%) of total sleep time spent in sleep stages N1, N2, N3, and REM on the night of methamphetamine treatments and during the following night (second night after methamphetamine treatments) in male rhesus monkeys (N = 4). Sleep data on nights of methamphetamine treatment were compared to sleep data on nights of vehicle (V) treatment. “Following night” sleep data (rebound effects) were compared to baseline (B) sleep data. Data are expressed as mean ± SEM. *p < 0.05 compared to vehicle (V); #p < 0.05 compared to baseline (B).