How to detect mTBI with newly FDA approved Brain Functional Test EEG/ERG? When your head whips back and forth in an auto accident, or if your head strikes something inside your car, your brain can be impacted. This impact to the brain, called a “traumatic brain injury” (TBI) can cause long-term damage to brain function. These injuries are insidious, as they are not always obvious right away. Months later, the injured person or his family may notice that he or she is becoming