Journal Article


Andrew N. Coogan
Ian H. Robertson
Andy Cochrane



older adults aging humans physiopathology cognition disorders analysis of variance female association study psychology circadian rhythms sleep diagnosis pre clinical male aged community neuropsychological tests physiology middle aged time factors sleep disorders circadian rhythm circadian rhythm aged 80 and over cognitive impairment actigraphy

Association between circadian rhythms, sleep and cognitive impairment in healthy older adults: an actigraphic study (2012)

Abstract There is increasing evidence for the relationship between circadian rhythm disturbance and cognitive decline in the older adult. This study measured circadian activity rhythms in a small group of healthy community-dwelling older adults (n = 26). Each participant completed a battery of neuropsychological tests and completed sleep diaries and 6 days of actigraphy. Ten participants were identified as having very early signs of cognitive decline as indicated by their performance on the memory tests. Results showed minimal differences on the sleep/activity and circadian parameters across the two groups (declined vs. intact), although there was a significant difference in the acrophase between the declined and intact groups. These findings, although exploratory, suggest that very subtle changes in circadian rhythm may be detected in older adults showing pre-clinical changes in cognitive performance.
Collections Ireland -> Maynooth University -> Academic Unit = Faculty of Science and Engineering: Psychology
Ireland -> Maynooth University -> Subject = Science & Engineering: Psychology
Ireland -> Maynooth University -> Type = Article
Ireland -> Maynooth University -> Academic Unit = Faculty of Science and Engineering
Ireland -> Maynooth University -> Status = Published
Ireland -> Maynooth University -> Open Access DRIVERset

Full list of authors on original publication

Andrew N. Coogan, Ian H. Robertson, Andy Cochrane

Experts in our system

Andrew Coogan
Maynooth University
Total Publications: 42
Ian H Robertson
Trinity College Dublin
Total Publications: 157