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Fig. 4 | Theoretical Biology and Medical Modelling

Fig. 4

From: Numerical study of entrainment of the human circadian system and recovery by light treatment

Fig. 4

Daily sleep times (black lines) and CBT minima (colored dots) during simulations of light treatment on non-seasonal affective disorder. The orexin level is increased on day 7 (indicated by an arrow), causing instability. Starting on day 14 (indicated by another arrow), morning light treatment of 10,000 lux for 1.5 h daily is administered and maintained during the times labeled yellow, which causes a gradual return to the normal phase

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