PWC-ICA: A Method for Stationary Ordered Blind Source Separation with Application to EEG

Figure 4

Plots of distance versus absolute time correlation between the dipoles corresponding to calculated components and the closest source. (a) Closest source to a component was determined by spatial distance between the associate dipoles. (b) Closest source to a component was determined by maximum absolute time correlation. Plots of distance versus absolute time correlation between physically plausible fitted dipoles with residual variance (RV) less than or equal to 15% and the closest actual source (c) by distance and (d) by absolute time correlation for different BSS algorithms.

(a)

(b)

(c)

(d)