 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.
<meaning-changed>  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.
 In the experiment, 10 participants (test group) received three cognitive training sessions with fNIRS-based frontoparietal FC as neurofeedback, and the other ten participants served as the normal control (NC) group.