Fig. 2.

Illustration of the (A) SMA (green) and the (B) PHC ROIs (blue). In order to generate the average group ROIs, we first determined each participant's ROI based on all localizer runs, and then averaged over all participants. During the neurofeedback runs, the SMA ROI enclosed on average 26 voxels, and the PHC ROI 22 voxels. (For interpretation of the references to color in this figure legend, the reader is referred to the web version of this article.)