Resting-state functional connectivity in the idiopathic generalized epilepsies: A systematic review and meta-analysis of EEG and MEG studies

•Altered resting-state functional networks found in idiopathic generalized epilepsy.•Meta-analysis showed no difference between groups in common network metrics.•Study synthesis impacted by substantial methods and patient heterogeneity.•Network analysis in idiopathic generalized epilepsy remains exploratory.•Individual variability in network dynamics needs to be better understood.