EEG power spectra and cognitive change in geriatric psychiatry: a longitudinal study

Determinants of Quantitative Spectral Electroencephalography in Early Alzheimer’s Disease: Cognitive Function, Regional Cerebral Blood Flow, and Computed Tomography

“…General level of cognitive function, assessed in several previous studies with the MMSE, is most consistently related to alpha activity on EEG in AD patients [8,13,16,17,46], in agreement with our findings. However, also correlations between overall cognitive function and delta and theta activity were observed in our study and in previous reports [13][14][15][16].…”

“…However, also correlations between overall cognitive function and delta and theta activity were observed in our study and in previous reports [13][14][15][16]. Our analysis of EEG activity in relation to domains of neuropsychological function showed that EEG abnormalities not only reflect a parietal lobe syndrome, as previously suggested [47], but that these disturbances are also closely related to frontal lobe functions.…”

Does EEG (visual and quantitative) reflect mental impairment in subcortical vascular dementia?

“…Our results are in agreement with those reported by other authors, one of whom [12], has indicated a decrease in the percentage of alpha power and increase in theta and delta power values. However, in earlier publications multi-infarct dementia was mainly analysed [17][18][19].…”

The Mozart Effect: A quantitative EEG study

“…On the basis of age-related modifications of EEG patterns, three groups of patients were enrolled in this study: (i) young adults, point of reference in the great majority of studies concerning performance ability in spatial-temporal tasks under the influence of Mozart music; (ii) elderly patients with MCI, since Mozart effect on patients with mild cognitive impairment was reported in a former study (Cacciafesta et al, 2010); (iii) elderly individuals with unknown cognitive deficit. Indeed, it is well-known that aging is marked by a gradual slowing down of dominant background alpha rhythm, accompanied by an increase in the slower theta and delta rhythms (Klass & Brenner, 1995;Sloan & Fenton, 1993). These changes may be more precocious and evident in individuals with MCI, and even more so in individuals with dementia, compared to healthy elderly individuals (Soininen, Partanen, Laulumaa, et al, 1991).…”