EEG, quantitative EEG, BAEP and ERP in centenarians.
In 11 healthy centenarians, the principal EEG and qEEG abnormalities were background frequency slower and power lower than in younger adults. The frequency and amplitude of anterior and posterior head regions on the EEG showed no difference, but qEEG demonstrated that posterior was higher than anterior. In 5 of 11 persons the frequencies of the temporal lobe were asymmetric. BAEP and ERP were measured in 6 persons. The latencies of I, III waves of BAEP were prolonged in only 1 subject. The latencies of exogenous components (P80, N100) of ERP were in the normal range. The latencies of endogenous components (N200, P300) of these 6 persons were prolonged, but in 1 person the N200 was normal and in 2 the P300 was normal.
Wu
X
X
Department of Neurology, First Teaching Hospital, Beijing Medical University, China.
D000203:Activities of Daily Living / Q000145:classification; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001143:Arousal / Q000502:physiology*; D001288:Attention / Q000502:physiology*; D001933:Brain Stem / Q000502:physiology; D002540:Cerebral Cortex / Q000502:physiology; D004292:Dominance, Cerebral / Q000502:physiology; D004569:Electroencephalography / Q000145:classification; D016057:Evoked Potentials, Auditory, Brain Stem / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D011930:Reaction Time / Q000502:physiology; D012016:Reference Values; D012815:Signal Processing, Computer-Assisted