Fig. 4.

Analysis of the power of the aSSR at f_AM. A: confusion matrix of the power of the MEG response at f_AM. The diagonal elements of the confusion matrix are the power of aSSR at f_AM, without any normalization or correction. The grayscale map is as shown in Fig. 3. B: the modulation transfer function (MTF) calculated as a function of the corrected power of the aSSR at f_AM and stimulus f_AM. Each gray hollow circle represents the corrected power of the aSSR at f_AM for one subject. The black line marked by triangles shows the grand averaged MTF. The gray line is the optimal linear fit of the MTF.