J Neuropsychiatry Clin Neurosci 1997; 9:574-578
Copyright © 1997 by American Neuropsychiatric Association
EEG power correlates with subcortical metabolic activity in AIDS
TF Newton, AF Leuchter, WG van Gorp, CH Hinkin, M Mandelkern and H Weiner
Department of Psychiatry, Department of Veterans Affairs Medical Center West Los Angeles, CA 90073, USA. newton.thomas@west-la.va.gov
The authors studied the relationship between brain metabolic activity and
quantitative electroencephalographic power in AIDS. Basal ganglia and
thalamic metabolic activity, measured with positron emission tomography,
correlated positively with EEG power in the 6-10-Hz band across most head
regions. Metabolic activity of anatomically defined cortical regions did
not correlate with EEG power recorded over each region. These results
support previously reported associations between abnormalities in
subcortical metabolic activity and EEG activity. The lack of correlation
between cortical metabolic activity and EEG activity suggests that
previously observed abnormalities in EEG activity are primarily subcortical
in origin.
