Polygraphic sleep criteria as predictors of successful aging: an exploratory longitudinal study
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TL;DR
It is suggested that the findings of the present study, in particular the potential predictive value of REM latency and REM density for cognitive functioning in the old, need replication in other subject samples followed for similar time periods.
Abstract
While the REM latency and density findings support the theory of a functional link between brain cholinergic activity, timing, and density of REM sleep and cognitive functioning, the positive association between the number of NREM shifts at baseline and cognitive performance 14 years later is difficult to explain. It is suggested that the findings of the present study, in particular the potential predictive value of REM latency and REM density for cognitive functioning in the old, need replication in other subject samples followed for similar time periods.
