Before revision:  In the experiment, ten participants received three 20 min cognitive training sessions with fNIRS-based frontoparietal FC as neurofeedback, and the other ten participants served as the normal control (NC) group.
After revision:  In the experiment, ten participants received three 20 min cognitive training sessions of 15 min using fNIRS-based frontoparietal FC as neurofeedback, and the other ten participants served as the normal control (NC) group.