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. Author manuscript; available in PMC: 2017 Apr 23.
Published in final edited form as: Brain Behav Immun. 2015 Jan 29;47:24–34. doi: 10.1016/j.bbi.2015.01.004

Fig 3. Stress ratings (a) bi-hourly during total sleep deprivation (n=17) and (b) average daily for synchronized (n=9) and not-synchronized (n=8) participants.

Fig 3

(a) Stress ratings were relatively stable across the first 24-h of wakefulness and were higher during the day of sleep deprivation. Dashed line indicates end of standard 16-h waking day and beginning of sleep deprivation. (b) Average daily stress ratings were similar for the synchronized and not-synchronize participants across the protocol. Note that day 8 shows average stress ratings during sleep deprivation for hours awake 25-40 on constant routine 1.