RT Journal Article
SR Electronic
T1 Symptoms following mild head injury: expectation as aetiology.
JF Journal of Neurology, Neurosurgery & Psychiatry
JO J Neurol Neurosurg Psychiatry
FD BMJ Publishing Group Ltd
SP 200
OP 204
DO 10.1136/jnnp.55.3.200
VO 55
IS 3
A1 W Mittenberg
A1 D V DiGiulio
A1 S Perrin
A1 A E Bass
YR 1992
UL http://jnnp.bmj.com/content/55/3/200.abstract
AB An affective, somatic, and memory check-list of symptoms was administered to subjects who had no personal experience or knowledge of head injury. Subjects indicated their current experiences of symptoms, then imagined having sustained a mild head injury in a motor vehicle accident, and endorsed symptoms they expected to experience six months after the injury. The checklist of symptoms was also administered to a group of patients with head injuries for comparison. Imaginary concussion reliably showed expectations in controls of a coherent cluster of symptoms virtually identical to the postconcussion syndrome reported by patients with head trauma. Patients consistently underestimated the premorbid prevalence of these symptoms compared with the base rate in controls. Symptom expectations appear to share as much variance with postconcussion syndrome as head injury itself. An aetiological role is suggested.