| | Group | Description | Articles |
| | Directed model based | Direct transfer function | [83, 127, 134, 135] | | Direct directed transfer function | [127, 134, 135] | | Full frequency transfer function | [83, 127, 134, 135] | | Granger causality | [42, 127, 134, 135, 145, 162] | | Kullback–Leibler divergence | [127] | | Lateral asymmetry index (LAI) | [66] | | Phase slope index (PSI) | [96] | | Sugihara causality | [139] |
| | Directed model free | Relative wavelet entropy | [172] | | Peak interregional transfer entropy delays (PITED) | [138] |
| | Nondirected model based | Coherence | [41, 42, 78, 79, 83–85, 89, 96, 104, 105, 112, 120, 121, 127, 130, 134–136, 143–145, 149, 157, 158, 162] | | Coherence (wavelet) | [38, 105, 106, 119] | | Correlation | [78, 111, 127, 135] | | Correlation (amplitude envelopes) | [178] | | Detrended cross-correlation analysis (DCCA) | [86] | | Global field synchronization (GFS) | [127, 165] | | Global phase synchronization | [98] | | Global synchronization index | [164] | | Lagged linear connectivity (LLC) | [81, 115, 131, 141, 163, 169, 171] | | Multivariate phase synchronization (MPS) | [98] | | Omega complexity | [127, 134, 135] | | Phase lag index (PLI) | [124, 168] | | Phase synchrony | [78, 127, 134] | | S-estimator | [99, 127] | | Stochastic event synchrony | [127] |
| | Nondirected model free | Coherence entropy coefficient | [127] | | Correlation entropy coefficient | [127] | | Mutual information | [42, 119, 127, 145] | | Permutation disalignment index | [148, 149] | | Synchronization likelihood | [97] | | Wavelet entropy coefficient | [127] |
| | Others | Canonical correlation | [145] | | Global field power (GFP) | [37, 124] | | Graph theory metrics | [97, 111, 120, 124, 131, 136, 141, 148, 168, 169, 172] | | Static canonical correlation | [162] |
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