Fig. 3: Variability of the neural dynamics criticality across groups and time points.

a, b Group based analysis of neural activity patterns, S₁ and S₂, as a function of T for all patients and controls. The brown lines represent patients at t₁ (3 months post-stroke, n = 54), and the green lines at t₂ (12 months post-stroke, n = 59). The thin solid curves indicate each individual stroke patient, while the thick dashed lines represent the group average. The group analysis reveals that on average patient's neural activity patterns are abnormal at t₁, but approach control levels at t₂. c, d Average activity and standard deviation of activity, respectively. Note improvement of the activity and its variability across time points. Insets: Probability distribution function (pdf) of the Euclidean distances d in individual age-matched-controls and stroke patients at t₁ (brown) and t₂ (green). Patients at t₁ show greater variability of model neural activity as depicted by the longer pdf's tails. Note trend toward normalization from t₁ to t₂. The black vertical dashed line depicts the critical point of healthy controls. Source data are provided as a Source Data file.