Figure 6: (a) Scatter plot between baselinenormalized cued response time and the ThetaAlpha power ratio, and linear regression fit for the “nondepressed” (GDS < 15) and “depressed” (GDS ≥ 15) QEEG groups. (b) Dendrogram plot of the hierarchical cluster tree from the data set—average slope of the ThetaAlpha power ratio versus average slope of baselinenormalized cued response time—providing three clusters shown with blue, red, and green colored linkages. 
