Headache and dizziness have always been recognized as common sequelae of cerebral concussion and trauma. In many cases these distressing symptoms persist even after the most conservative treatment in the acute stage of concussion. There is, however, another important sequel of cerebral concussion which thus far has not received the attention it deserves. This sequel is change in character.
In many cases change in character has been observed following cerebral trauma, but its true significance has not been appreciated because the majority of cases showing alterations in personality following head injury have been classified as cases of traumatic neurosis. This diagnosis presupposes that the symptoms are purely functional, and the fact that many persons with posttraumatic symptoms either apply for or receive compensation has usually inclined the clinician toward this diagnosis.
It was not until the development of the technic of encephalography that the full significance of the sequelae of
Drayton W. PNEUMOCRANIUM IN THE TREATMENT OF TRAUMATIC HEADACHE, DIZZINESS AND CHANGE OF CHARACTER. Arch NeurPsych. 1934;32(6):1302-1309. doi:10.1001/archneurpsyc.1934.02250120179015