Time series and Topographies from eleven-channel mean SSMVEPs of subject S1.

<p>(A) Time series of the mean SSMVEPs. Topographic distributions exhibited symmetrical activations of the transient P1, N2 and P2 components. (B) Spectral topographies of three predominant frequency components of the mean SSMVEPs. The most activation area was also symmetrically located on PO7, Oz and PO8 sites.