Evaluations of Dementia by EEG Frequency Analysis and Psychological Examination

Journal

Journal of Physiological Sciences

Year

2010

Abstract

In order to evaluate the stage of dementia, we focused attention on EEG rhythms and Hasegawa-dementia-rating scale (HDS-R). Frontal EEGs were recorded from dementia patients and normal controls during music and photo-image stimulations, and frequency analysis was performed. In the controls, profiles of rhythm pattern during music stimulation seemed to be markedly different from those during photo-image stimulation. In contrast, in dementia patients, it was difficult to find those differences. Interestingly, as HDS-R decreases, the variability of rhythm patterns also decreases. These results suggest that a decrease in cognitive function might be related to a decrease in the ability to generate various cortical rhythm patterns.

Music and Health Institute Terms

Alzheimer's and Related Dementias; Cognitive Abilities; Elderly; Music Listening; Neurodegenerative Disorders; Noninvasive Procedures

Indexed Terms

Elderly; Brain Waves; Cerebral Cortex; Dementia; Electroencephalography; Neuropsychological Tests; Photic Stimulation; Severity of Illness Index

Study Type

Randomized Controlled; Trial; Quantitative Methods

PubMed ID

20560051

Document Type

Article

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