We along with our collaborators will create a unified longitudinal dataset to examine associations between physiologic biosignals/functional measures and mental health outcomes/conditions (e.g., symptoms, suicidal thoughts and behaviors). This dataset will include combined measures from the existing Long-Term Impact of Military Brain Injury (LIMBIC) and Translational Research Center for TBI and Stress Disorders (TRACTS) protocols. Initial findings from this proposed effort will be foundational for subsequent inquiry focused on enhancing diagnostic and prognostic efforts to improve brain health and psychosocial functioning among Veterans living with mTBI and mental health conditions.