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. Author manuscript; available in PMC: 2013 Mar 15.
Published in final edited form as: J Immunol. 2012 Feb 3;188(6):2583–2591. doi: 10.4049/jimmunol.1102715

Figure 2. Circadian wheel-running activity rhythm amplitudes are decreased following chronic shift lag.

Figure 2

LS periodograms analysis restricted to the initial 5 days in DD for control (A) and shifted (B) groups. No differences for period were demonstrated between groups in DD. Rhythm amplitude levels (dotted lines) were significantly decreased in DD following the chronic shifting paradigm (*; p < 0.0001). Shifted animals remained comparatively rhythmic with a dampening of circadian rhythm.