RT Journal Article SR Electronic T1 EEG and computed tomography in the investigation of patients with senile dementia. JF Journal of Neurology, Neurosurgery & Psychiatry JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP 711 OP 714 DO 10.1136/jnnp.45.8.711 VO 45 IS 8 A1 H Soininen A1 J V Partanen A1 M Puranen A1 P J Riekkinen YR 1982 UL http://jnnp.bmj.com/content/45/8/711.abstract AB Fifty-six patients with senile dementia of Alzheimer type and 84 normal elderly people were examined by EEG and computed tomography. In discriminant function analysis of the computed tomography indexes the highest discriminant function coefficient was for width of the third ventricle. Using computed tomography, the groups were correctly classified for 84% of the subjects. In discriminant function analysis of the EEG variables the highest discriminant function coefficient was for dominant occipital rhythm; the groups were correctly classified for 86% of the subjects. In discriminant function analysis of the width of the third ventricle, an index of cortical atrophy, the dominant occipital rhythm, age and sex, the width of the third ventricle had the highest discriminant function coefficient; the groups were correctly classified for 90% of the subjects.