Source Reconstruction Accuracy of MEG and EEG Bayesian Inversion Approaches
Figure 8
Example of curves of temporal variance explained by the source reconstruction (R2).
The R2 value reported by SPM includes all vertices in the cortical mesh. Only the vertices located within the given search-size (x axis; 3 to 30 mm) were considered to generate time-courses. One line plot is calculated for each SNR (−30 to +10 dB, in 10 dB steps). The Temporal Accuracy Index (TAI) for a given search-size is considered as the R2 value at that distance.