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. 2019 Mar 28;13:262. doi: 10.3389/fnins.2019.00262

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Copyright © 2019 van der Meij, Martinez-Gonzalez, Beckers and Rattenborg.

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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Slow-wave activity (SWA) during both non-rapid eye-movement (NREM) sleep and isoflurane anesthesia: Mean SWA (1.5–5 Hz power; N = 4 birds) over all episodes of wake, rapid eye-movement (REM) sleep, NREM sleep, and low (1.5%) isoflurane episodes. SWA during NREM sleep and low anesthesia is the highest in the diagonal of the recording array (i.e., on the electrode sites that were placed in IHA/HI, the thalamic input layer). Image plots of SWA activity under 2.0, 2.5, and 3.0% isoflurane anesthesia showed the same pattern as the 1.5% anesthesia image plot (data not shown).