bWell-D Pilot Randomized Controlled Trial

Inclusion Criteria: * 19-55 years old * Meeting the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) criteria for MDD as assessed by a standardized psychiatric interview (SCID-5-RV) conducted by a trained clinician. * Patients will be euthymic or mildly depressed (defined by a Montgomery-Asberg Depression Rating Scale \[MADRS\] score \< 19) * Patients will report subjective cognitive deficits at baseline, as indicated by a total Perceived Deficits Questionnaire - Depression 20 \[PDQ-D-20\] score \> 20 at study enrollment. * If using antidepressants, participants will be on stable antidepressant therapy for at least 4 weeks prior to randomization. All concomitant doctor-prescribed medications must be at a stable dose for 4 weeks prior to the randomization visit. * If undergoing psychotherapy, participants will be on stable adjunct psychotherapy for at least 8 weeks prior to randomization * If comorbid diagnosis of attention deficit hyperactivity disorder (ADHD), patients must be on stable dose of stimulants for at least 4 weeks prior to randomization. * Participants will be able to follow written and verbal instructions in English Exclusion Criteria: * Moderate - severely depressed patients will be excluded at this point due to acceptability concerns (e.g. potential for cybersickness) * Presence of significant neurological disorders, head trauma, or other unstable medical conditions. These conditions may adversely impact cognitive functioning and…