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. 2020 Oct 29;9:e62071. doi: 10.7554/eLife.62071

Video 2. Arousal and associated changes in neural activity and hemodynamics during NREM sleep.

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Whisker motion, IOS reflectance, and eye camera activity are shown alongside measurements of neural activity and hemodynamics. The NREM state shows little whisker motion and a lower heart rate. The eye is still open. Low-frequency (delta band) cortical neural activity is elevated, and there are large changes in reflectance.