Figure 6

Estimation of acrophase. A: evolution of acrophase (red), positive flank using Heaviside function (green), and center of gravity (blue), in a real series of motor activity from a mice submitted to 8 h advances in the light–dark cycle. B: evolution of the acrophase in a simulated series with one bout of activity at the beginning and the end of a square wave, to show the effect of the wave shape on the estimation of the acrophase. In both cases de sections are s = l = T.