[True polyotia, a rare anomaly of early foetal development (author's transl)].
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Biomedical subjects
Publications and source records attributed to K Blass.
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Disturbances of nocturnal sleep and the frequency of prescription of hypnotic drugs are more frequently found in elderly people. The majority of studies on sleep in the elderly have focussed on subjects between 60 and 80 years. Even though the number of people aged 80 to 90 years has clearly increased during recent years, still only rare data are available concerning sleep in this group. The present study investigated sleep, wakefulness, and, in addition, the cognitive functions in a group of seniors not suffering from sleep disturbances, aged 80 to 90 years. The evolution of sleep and sex differences of sleep variables dependent on age with respect to the findings in an 85-year-old woman and an 82-year-old man are discussed. Polysomnographic parameters and subjective estimation of sleep quality were compared. Possible correlations of REM-sleep and the results of the Nürnberger-test-battery were evaluated. Finally, subjective estimation of daytime sleepiness with reference to sleep variables was evaluated.
In an ongoing study of sleep in aged seniors the relationship between physiological, pathophysiological changes of sleep parameters and cognitive function was studied. It will be argued that the Nuremberg gerontopsychological inventory is superior to commonly used psychometric test-batteries to assess cognitive function in the aged. Preliminary results on the application of the Nuremberg gerontopsychological inventory will be presented, which were achieved in 10, non-demented, independently living subjects aged 80 to 85 years. The relationship between subjective complaints on aging, everyday activities and psychometric assessed performance was analyzed in detail.