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Fig. 1. Time series trajectories. (A) System behavior converges to a fixed state.
Such a pattern is commonly seen in the assessment of phase lag and damping in
blood pressure recording systems. (B) Periodic system. Such patterns are
evident in stable heart rate recordings. (C) Aperiodic trajectory
characteristic of a chaotic system. Patterns like these are characteristic of
the abnormal beating of hearts in fibrillation.