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. 2017 Jan 10;10:240. doi: 10.3389/fnbeh.2016.00240

Figure 4.

Figure 4

Diet effects on sleep. Data expressed as average amounts of the two recording days (12 h light and 12 h dark) indicating that rats consuming the test diet spent more time in NREM sleep and had increased NREM sleep consolidation in early-life. (A) Wake was reduced and (B) NREM sleep was increased during the light cycle in rats consuming test diet when compared to rats on the control diet. (C) There was no effect of diet on rapid eye movement (REM) sleep. (D) The average duration of NREM sleep episodes was significantly longer indicating greater NREM sleep consolidation in rats consuming the test diet when compared to rats on the control diet. One week later (E) wake was still reduced and (F) NREM sleep increased during the light cycle in rats consuming test diet, (G) there was no effect of diet on REM sleep, and (H) there was only a trend (p = 0.07) towards increased NREM sleep consolidation. The effects of diet were no longer present on (I) wake, (J) NREM sleep, (K) REM sleep or (L) NREM episode duration on PNDs 85, 86. Abbreviations are as follows: NREM, Non-rapid eye movement; PND, post natal days; sec, seconds (#p < 0.05 vs. control diet).