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Optimal Schedules of Light Exposure for Rapidly Correcting Circadian Misalignment

Figure 4

Optimal schedules for all phase shifts.

This plot shows the pattern of bright light (200 lux–10,000 lux, yellow), background light (100 lux, white), and darkness (0 lux, black) under which the clock is optimally reset from the corresponding initial phase. If a vertical line is drawn on the plot, then the pattern of light and dark along this vertical line is the optimal schedule for resetting the clock from the corresponding initial phase. Figure (A) shows the optimal schedules for resetting the clock when 10,000 lux light is available; (B) 1000 lux; (C) 500 lux; (D) 200 lux; (E) 100 lux.

Figure 4