Acceptance and Commitment Therapy Integrated Vestibular Rehabilitation (ACTIVE) RCT

Inclusion Criteria: * 18-49 years of age * Normal/corrected vision * Diagnosed with mTBI per military clinical practice guidelines (CPGs) that occurred over 8 days prior to consent as determined by a multi-domain assessment performed by a licensed healthcare professional. * mTBI-related symptoms and/or impairments in at least one or more areas, including vestibular (dizziness, imbalance), psychological health (anxiety, depression, stress), cognitive (memory problems), headache/migraine, ocular, or sleep. as determined by self-report. Exclusion Criteria: * History of vestibular disorder (e.g., benign paroxysmal positional vertigo, unilateral or bilateral vestibular hypofunction) as determined by patient self-report. * History of neurological disorder (e.g., epilepsy, multiple sclerosis) as determined by self-report. * Cervical spine injury or dysfunction (i.e., limited range of motion; ROM) as determined by self-report. * Previous moderate to severe TBI as determined by self-report. * \< 8 days following current mTBI as determined by self-report. * Currently pregnant as determined by self-report.