Figure 2.

Grand average of the SEP across all subjects in sensor, CCA, and source space (N = 31). A, SEP at electrodes F4, CP4, and P4, as well as its representation in the tangential CCA component. B, Scalp topography in sensor space at 20 ms after stimulus. C, Activation pattern of the tangential CCA component. D, Sources (absolute values) underlying the spatial patterns of the tangential CCA component, reconstructed using eLORETA based on individual head models. E, Same as in D, but applying an amplitude threshold of 95% to find the strongest generators (displayed on a smoothed cortex surface).