Laura Dubreuil Vall edited untitled.html  about 8 years ago

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electrode (C3, F3) (p=0.0047) with a decreased mean frequency in the Alpha band near the  return electrode (P4) (p=0.035); and c) significantly  increased mean coherence in the active group in the fastest frequency bands Beta2 under Cz and C4 (p=0.007), Gamma band under Cz electrode (p=0.0023), C3 electrode (p=0.0006) and C4 electrode (p=0.0006), and SMR band under C3 electrode (p=0.05).

 

LAURA – ADD THE TYPE OF TEST USED FOR THE RESULTS AND THE P VALUES  OBTAINED --> Described  above


AddFigure 2 - Normalized pre-post EEG power, frequency and coherence for 1mA tDCS compared to sham stimulation shows; a) significant increase of the mean power in the Gamma frequency band under C3, the anodal stimulating electrode; b) a significant increment of faster activity around the anode (stimulating) electrode (C3, F3) with a decreased mean frequency in the Alpha band near the return electrode (P4); and c) significantly increased mean coherence in the fastest frequency bands (Beta2, Gamma) and SMR under the stimulating electrode (C3), the symmetrical location in the other hemisphere (C4) and the vertex (Cz). The lower map provides the p-value (Wilcoxon test) of Sham vs. active (1mA) stimulation. 

 

Effects  above

 

Effects  of tDCS on Corticospinal excitability

Baseline values for resting MEP amplitude were similar between interventions (average: 0.37±0.05 mV; mean±SEM).  No significant changes were observed for 1 mA a-tDCS or sham. The stimulation  intensities used to obtain the RMT were not significantly different between 1