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. Author manuscript; available in PMC: 2009 Oct 7.
Published in final edited form as: Schizophr Res. 2001 Jan 15;47(1):77–86. doi: 10.1016/s0920-9964(00)00029-3

Fig. 1.

Fig. 1

Cosine model of circadian rhythms. Mesor represents the midpoint of the curve, amplitude is the distance from the mesor to the peak at its highest point and the acrophase is the time of the rhythm's peak (Batschelet, 1981).