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. 2022 Feb 3;13:681. doi: 10.1038/s41467-022-28308-6

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© The Author(s) 2022, corrected publication 2022

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Fig. 1 — The schedule for participants (A) 29K6V and (B) 29R8V, plotted in raster format. White and grey bars indicate wake episodes in ambient light of <190 lux or <3 lux, respectively. Black bars indicate scheduled sleep in darkness (0 lux). The hatched bars indicate the 6.5-h light exposure (LE). The open circles indicate the timing of meals and snacks (smaller circle) during the exposure day.