Fig. 3.

Model evidence of the DCM for all combinations of RF, filter settings, and trial depth. Upper panels: LBF for trial depth 2. Lower panels: LBF for trial depth 3. Smaller LBF indicates higher model evidence. Grey shaded area marks an absolute LBF <3 relative to the reference model (i.e. using cRF, bi-directional filtering at 0.0159 Hz and a trial depth of 2), points outside the shaded are significantly different from the default method.