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. Author manuscript; available in PMC: 2018 Jun 1.
Published in final edited form as: Sleep Med. 2017 Mar 14;34:33–39. doi: 10.1016/j.sleep.2017.02.019

Figure 5.

Figure 5

The clock time of the dim light melatonin onsets (DLMOs) measured immediately before and after the 5 day study break in healthy controls (left) and participants with delayed sleep-wake phase disorder (DSWPD, right). Participants were permitted to sleep at any time on the first night of the study break, but for the remaining 4 nights participants were instructed to sleep within 30 minutes of their average prestudy sleep onset and wake times. Only 2 healthy controls but 6 DSWPD participants had more than a 1 hour shift in the DLMO. The same symbols and colors are used for the same participants in the other figures.