Neurotechnology Following Traumatic Brain Injury

Inclusion Criteria: * 1 Must have symptoms related to concussion or TBI, not healthy controls Age 18 years or older. * 2 Active duty or retired military service member, or dependent beneficiary. * 3 History of mild TBI, confirmed by administration of the Ohio State University TBI * Identification Method Interview. * 4 At least three months, and no more than ten years, since their most recent TBI. * 5 Persistent symptoms temporally related, or otherwise attributable to, the TBI, such as * headache or chronic pain, sensory disturbance including auditory, visual or other sensory * symptoms, balance difficulties, or dizziness. After obtaining informed consent, sufficient * severity of symptoms for entry into the study will be confirmed by administration of the * Neurobehavioral Symptom Inventory (NSI), with a score of 23 or higher required for * inclusion. * 6 Willingness to be randomly assigned to one of the two treatment groups and to provide * data for all study measures. * 7 Willingness to abstain from alcohol or recreational drug use throughout the intervention * period and up to 3 weeks after completion of the final office-based intervention session. * This abstention period is intended to support the stabilization of new brain activity * patterns that may result from the intervention. * 8 For individuals using any of the following medication classes (either regularly scheduled * or PRN), a willingness both to discontinue or hold those medications at least five (5) halfliv…