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. 2014 Sep 18;14(9):17491–17515. doi: 10.3390/s140917491

Figure 13.

Figure 13.

The bar graphs show the number of subjects that show positive linear relationship between ECD and α power percentage in each occipital channel. The arrow indicates the best occipital channel. The Y-axis indicates the EEG features (Alpha_P7—Per = u(x, P7, α)). The X-axis indicates the number of subjects that exhibit an increasing α power percentage as the ECD increases.