PMC

Scatterplot of clinical ratings (z-standardized) against latency (days after the intervention) of the neurofeedback (black) and sham (gray) intervention groups and the corresponding best fit line for each group.

Scatterplot of the clinical ratings (%-change from pre-intervention) against latency (days from intervention) of the neurofeedback (black) and sham (gray) intervention groups and the corresponding best fit line for each group.

Panel (A) Example feedback screen in the OCD study. The arrow pointing to the right (white) indicates a resting block with a neutral picture shown and corresponds with white segments of the feedback time course (below). As pictures changed to provocative, a red arrow pointing up indicated an upregulation phase and a blue arrow pointing down a downregulation phase. The feedback time course underneath the picture changed colors accordingly. Panel (B) Example feedback screen in TS study. The blue arrow at the top of the screen indicated a downregulation phase and would alternate with a red arrow pointing up during upregulation phases. The colors of the feedback time course corresponded with the regulation phase color.