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. Author manuscript; available in PMC: 2011 Nov 10.
Published in final edited form as: Nonlinear Dynamics Psychol Life Sci. 2010 Jan;14(1):27–46.

Figure 1.

Figure 1

Time series (Panel A) and phase portrait (Panel B) of pain prediction accuracy simulated using a 4th order Runge-Kutta algorithm. The diminished oscillation amplitude in the time series and inward spiral in the phase portrait are both indicative of nonlinear damping.