 - traumatic brain injury as defined by The American Congress of Rehabilitation as a person who has had a traumatically induced physiological disruption of brain function i.e., the head being struck, the head striking an object, andor the brain undergoing an accelerationdeceleration movement i.e., whiplash without direct external trauma to the head, as manifested by at least one of the following: any loss of consciousness; any loss of memory for events immediately before or after the injury; any alteration in mental status at the time of the incident; or focal neurological deficits that may or may not be transient 