Figure 2 | Scientific Reports

Figure 2

From: Association between aphasia severity and brain network alterations after stroke assessed using the electroencephalographic phase synchrony index

Figure 2

Results of analyses for the PSIs between the motor language-related regions. Comparison of PSIs in stroke patients with those in healthy controls. A box-and-whisker plot indicating values of the (a) F7F8-PSI, (b) F7T5-PSI, and (c) F8T6-PSI of stroke patients and healthy controls (Mann‒Whitney U test; * P < 0.05; ** P < 0.01, FDR corrected). The F7F8-PSI (β1 and β2), the F7T5-PSI (γ), and the F8T6-PSI (δ and θ) show significant differences between stroke patients and healthy controls. Correlation coefficients of the F7F8/F7T5/F8T6-PSIs with ARSsp scores. A polygonal line graph of the correlation coefficients for the correlation of (d) F7F8-PSI, (e) F7T5-PSI, and (f) F8T6-PSI with ARSsp scores (Spearman’s correlation analysis; * P < 0.05; ** P < 0.01, FDR corrected). Each PSI shows significant correlations in distinct frequency bands with significant differences between stroke patients and healthy controls. ARSsp Aphasia Rating Scale speech, FDR false discovery rate, PSI phase synchrony index.

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