Fig. 2

Network geometry for EEG-NFT on WM (A) and EM (B) in healthy participants. Each node indicates a particular intervention and is weighted according to the number of studies. Each edge (line connecting the nodes) is weighted according to the number of participants and directly compares the interventions it connects. Each English number respectively shows a series of information (an intervention: number of studies, n = number of participants). AC, active control; LA, lower alpha; LB, low beta; PC, passive control; Ref., reference; SC, silent control; SMR, sensorimotor rhythm; UA, upper alpha; WMT, working memory training