[Comparative study of changes in electroencephalographic and rheoencephalographic recordings with advancing age (author's transl)].
The correlation between the frequency index of the left parietotemporal E.E.G., and cerebral blood flow determined by rheoencephalography, was studied in 20 normal children (aged 8 to 13 years), 24 normal adults (18 to 45 years), 15 normal elderly subjects (78 to 95 years), and 37 patients with pathological disorders. A significant correlation was found in each group between the E.E.G. frequency index and blood flow rate. The occupation times correlating with the flow were: rapid rhythms in children, alpha rhythms (negative correlation) in normal adults, slow rhythms (negative correlations) in elderly subjects, and slow rhythms (negative correlation) in patients with pathological disorders.
D000293:Adolescent; D000328:Adult; D000368:Aged; D000375:Aging; D001927:Brain Diseases / Q000503:physiopathology*; D002544:Cerebral Infarction / Q000503:physiopathology; D002560:Cerebrovascular Circulation; D002648:Child; D003704:Dementia / Q000503:physiopathology; D004569:Electroencephalography; D006801:Humans; D010300:Parkinson Disease / Q000503:physiopathology; D010992:Plethysmography, Impedance
Etude comparative electroencéphalographique et rhéoencéphalographique dans le vieillissement.