Self Neuro-modulation Therapy for Major Depressive Disorder (MDD) With Anhedonia

The study is comprised of the Screening Visit, Baseline Assessment, Pre-training Visit, 20 NF Training Visits (two training visits per week over 10 weeks), two Booster NF Training Visits (Week 16, and Week 20, and the 3-Month Follow-up Assessment Visit (Week 24). Participants will receive 20 NF sessions. The study will test the following hypothesis: * H0: M(Anhedonic)RS-EFP = M(Anhedonic)Sham-EFP * H1: M(Anhedonic)RS-EFP ≠ M(Anhedonic)Sham-EFP Where: M(Anhedonic)RS-EFP and M(Anhedonic)Sham-EFP are the mean changes from baseline HDRS-17 score in the Active and Sham arms of the Anhedonic MDD participants. \*HDRS-21 is administered for cluster analysis