Figure 5.

Topographical plots of classification performance averaged across all 18 subjects for the: (A) logistic regression; (B) quadratic discriminant analysis; and (C) three-nearest neighbor classifiers. Values represented by the color maps are the proportion of correctly labeled examples. Values at non-electrode locations were obtained via biharmonic spline interpolation [33]. The electrode labeling convention follows the Modified Combinatorial 10–20 Standard [24].