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Table 5 Summary of metrics from EEG brain connectivity and main findings related to motor function

From: Literature review of stroke assessment for upper-extremity physical function via EEG, EMG, kinematic, and kinetic measurements and their reliability

Metric

Stage

Correlation with clinical measures/findings [reference]

Delta and Alpha2 small-worldness

Acute

Significant differences between people with stroke and controls [108]*

Maximum coherence PLI alpha band

Sub-Acute

Predictor of FM-UE score [139]

Ipsilesional High beta M1-PM and network to M1 coherence

Chronic

Motor therapy gains, FMA predictor [94], negative correlation with FMA evolution over a month

Interhemispheric M1 Beta

Chronic

PDC with FMA-UE and hand recovery [109], dwPLI with ARAT and FM-UE [138]

Motor cortex Weighted node Degree (WND) from iCoh beta band

Chronic

FMA-UE, Nine Hole Peg Test [38]

Alpha connectivity with motor cortex

Chronic

3-months FMA [104]*

Beta, Gamma Normalized inter hemispheric strength (nIHS) from PDC

Chronic

Cortico Spinal Tract (CST) integrity, impairment [136]

Global and local Beta/Gamma bands network efficiency

Chronic

Survivors of stroke have less-efficient networks vs. unimpaired [106]*, FMA-UE [135]

  1. An extended version of this table that includes demographic information can be found in Table 12 in Appendix 2
  2. *Record added manually