Max et al.(1998) “Psychiatric Disorders in Children and Adolescents after Severe Traumatic Brain Injury: A Controlled Study.” Journal of the American Academy of Child & Adolescent Psychiatry, 37(8).
This paper is a cross-sectional study in which young kids obtained severe traumatic brain injuries as well as those with mild trauma to the brain. The control group was kids who sustained orthopedic injuries. They took CT scans of those who had severe TBI when they were hospitalized. They saw a rise in organic personality disorder among those who sustained a severe TBI.