closely neighboring clusters were grouped together if they all fell within a PA domain with dimensions at least 1 Hz × 1 Hz. Only clusters considered for analysis were those falling within one of the standard PA domains represented on the comodulograms analyzed in this study, which include the delta-gamma, theta-gamma, alpha-gamma, delta-beta, theta-beta, alpha-beta, delta-alpha, and theta-alpha domains. These domain boundaries are based on standard EEG frequency bands of delta (0.1–3 Hz), theta (3–8 Hz), alpha (8–13 Hz), beta (13–28 Hz), and gamma (28–50 Hz).
