When a person is injured in a car wreck, motorcycle wreck, or other personal injury, sometimes the most harmful injuries are those that you cannot see with the naked eye: a brain injury. Sometimes brain injuries are obvious and an injured person's functioning is so impaired that they are left unable to speak, walk, or feed themselves. Other times, the brain injury is subtler. Called a mild traumatic brain injury (mTBI) , these injuries can be as devastating as a spinal cord injury or any other serious injury. However, because the injured person may "look" normal, it can be more difficult to recover compensation for these types of cases.