Type

Conference Proceedings

Authors

Rose Ann Kenny
Brian A. Lawlor
Frank Kee
Joanna E. McHugh Power

Subjects

Psychiatry

Topics
brain health aspects psychology longitudinal study cognitive psychology sleep data collection maximum likelihood

Sleep, loneliness, and their impact on aspects of brain health: Findings from TILDA (2018)

Abstract Background: Previous research indicates that loneliness is associated with declines in semantic memory, which is an early indicator of Alzheimer‘s disease. Evidence also exists for an impact of loneliness on sleep such that individuals who are lonely experience more restless sleep. We wanted to explore whether restless sleep would mediate the association between loneliness and semantic memory. Methods: Data pertaining to 8,163 participants in the Irish Longitudinal Study on Ageing (TILDA) across three waves of data collection were analysed using a path analysis framework. A mediation model (based on the product of coefficients method) was specified, with loneliness (scores on the 5-item UCLA loneliness scale) as the predictor, self-reported restless sleep as the mediator, and semantic memory (scores on a task of verbal fluency) as the outcome. Age, sex, and education were included as covariates. A maximum likelihood estimator was used. Results: Results indicated good model fit (☐ 29 = 1215.21, p<0.001; CFI = 0.91, TLI = 0.74, RMSEA = 0.08, SRMR = 0.03). Loneliness predicted animal naming (beta = -0.18, p<0.001) as did restless sleep (beta = 0.17, p<0.05), and loneliness also predicted restless sleep (beta = 0.08, p<0.001). There was a mediation effect evident (beta = 0.005, p<0.05). Conclusion: Results suggest that restless sleep has a mediating role in the association between loneliness and semantic memory. Interventions aimed at preventing Alzheimer‘s disease and cognitive decline in later life should consider intervening on loneliness and sleep quality in order to improve outcomes.
Collections Ireland -> National College Ireland -> Subject = B Philosophy. Psychology. Religion: Psychology: Cognitive psychology
Ireland -> National College Ireland -> Subject = B Philosophy. Psychology. Religion
Ireland -> National College Ireland -> Status = Submitted
Ireland -> National College Ireland -> Subject = B Philosophy. Psychology. Religion: Psychology
Ireland -> National College Ireland -> Type = Conference or Workshop Item

Full list of authors on original publication

Rose Ann Kenny, Brian A. Lawlor, Frank Kee, Joanna E. McHugh Power

Experts in our system

1
Rose Anne Kenny
Trinity College Dublin
Total Publications: 252
 
2
Brian A. Lawlor
National College Ireland
Total Publications: 125
 
3
Frank Kee
National College Ireland
Total Publications: 25
 
4
Joanna E. McHugh Power
National College Ireland
Total Publications: 32