3. Daily dynamics of states of vigilance in mice

Previous studies demonstrated that (a) mice preferentially sleep during light hours and they are preferentially awake during dark hours; (b) mice have fragmented sleep. Despite multiple investigations involving sleep-wake transitions in mice, the exact patterns of sleep-wake alternations are not known. Here we studied sleep-wake pattern distribution in 5 young adult C57BL/6 mice over 5 days using continuous LFP and EMG recordings with a resolution of 5s. The states were automatically detected based on LFP delta power, theta power and EMG power.

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