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Figure 2 | Journal of Circadian Rhythms

Figure 2

From: Variation in nocturnality and circadian activity rhythms between photoresponsive F344 and nonphotoresponsive Sprague Dawley rats

Figure 2

Proportion of rats active in relation to time of day (Mean +/- SEM). (a) F344 in LD, (b) HSD in LD, (c) F344 in SD, (d) HSD in SD, (e) F344 in constant dark, and (f) HSD in constant dark. The profiles show the proportion of individual rats active on the running wheel during each hour, averaged over the final four days of activity monitoring. For rats in constant dark, activity was fit to the 24 hour profile by placing the zero time point at the midpoint of activity.

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