Inclusion Criteria:  gender, inclusive  adult aged 18 - 65 meets Diagnostic and Statistical Manual of Mental Disorders (DSM-5) criteria for MDD according to the Clinician-Administered MDD Scale for DSM-5 (unipolar depression or bipolar II depressed) scores at least a minimum score of 16 on Montgomery Asberg Depression Rating Scale (MADRS) normal cognition participants must be able to read and understand English participants must be able to provide consent  Exclusion Criteria:  pregnancy (female participants)  outside age range MRI contraindications (medical implant, claustrophobia, etc.) use of psychoactive medication (including antidepressants) or currently in therapy neurological disorder or any condition that in the view of the PI could impact brain data, cause depression, require medication that could cause depressive symptoms, or otherwise result in participant being unfit for study (for example, co-morbid psychotic, neurological disorders, developmentally or cognitively disabled/impaired, active alcohol or drug abuse/dependence within the past 6 months). non-English speaking non-correctable vision loss refusal to provide informed consent representing an active suicide risk