Home-Based, Online, Mindfulness and Cognitive Training for Soldiers and Veterans With TBI

Inclusion Criteria: * Participants must be 18 years of age or older * Participants must have diagnosis of mild traumatic brain injury (mTBI) confirmed by Ohio State University TBI Identification Method-Short Form (OSU TBI-ID-SF) * Participants must have persistent cognitive dysfunction confirmed by an objective measure (Automated Neuropsychological Assessment Metrics (ANAM) TBI Battery with a score at least one standard deviation below the age-adjusted norm for a military sample) or a subjective measure (Ruff Neurobehavioral Inventory (RNBI) with a score of greater than 70 on any of the four cognitive scales (Attention, Memory, Language, Executive) * Participants must be at least six months out from their most recent traumatic brain injury (TBI), concussion, and/or blast exposure * Participant must be a fluent English speaker * Participants must score ≥ 70 on the Wechsler Test of Adult Reading (WTAR) * Participants must have adequate sensorimotor capacity to perform the program, including visual capacity adequate to read from a computer screen at a normal viewing distance, auditory capacity adequate to understand normal speech, and motor capacity adequate to control a computer mouse Exclusion Criteria: * Participants with history of TBI with loss of consciousness for more than 24 hours or post-traumatic amnesia for more than 7 days * Participants with a history of penetrating head wounds * Participants who are in-patients * Participants with a diagnosis of an illness or condition with known cognitive consequences (e.g., schizophrenia, bipolar disorder, cancer, multiple sclerosis) * Participants with active suicidal ideation with specific plan and intent or suicide-related behaviors within 2 months of consent as measured by the Columbia-Suicide Severity Rating Scale (C-SSRS) * Participants showing signs of intoxication due to current substance abuse (including alcohol and/or illegal drugs) during any in person visit * Participants with clinically significant visual field deficits * Participants judged to be lacking effort * Participants with problems performing assessments or comprehending or following spoken instructions * Participants enrolled in a concurrent clinical trial involving an investigational pharmaceutical, nutraceutical, medical device, or behavioral treatment for TBI that could affect the outcome of this study * Participant with self-reported claustrophobia or physician-reported implanted devices (e.g. pacemakers, cochlear implants, aneurysm clips, etc.) and pregnant women will not be able to participate in MRI portion of study.