Cognitive impairment in individuals with insomnia: clinical significance and correlates.
TLDR
Findings suggest clinically significant alterations in attention and episodic memory in individuals with insomnia appear associated with sleep continuity, and may also be related to sleep microstructure and dysfunctional beliefs.Abstract:
Study objectives The aims of this study were to (1) investigate the nature of cognitive impairment in individuals with insomnia, (2) document their clinical significance, (3) examine their correlates, and (4) explore differences among individuals with insomnia with and without cognitive complaints. Design Participants underwent 3 consecutive nights of polysomnography. On the morning following the third night, they completed a battery of questionnaires and neuropsychological tests. Participants The sample included 25 adults with primary insomnia (mean age: 44.4 ± 11.5 y, 56% women) and 16 controls (mean age: 42.8 ± 12.9 y, 50% women) matched for sex, age, and education. Intervention N/A. Measurement and results Participants completed neuropsychological tests covering attention, memory, working memory, and executive functions, as well as questionnaires assessing the subjective perception of performance, depression, anxiety, fatigue, sleepiness, and hyperarousal. There were significant group differences for the attention and episodic memory domains. Clinically significant deficits were more frequent in the insomnia group. Within the insomnia group, individuals with cognitive complaints exhibited significantly poorer performance on a larger number of neuropsychological variables. All impaired aspects of performance were significantly associated with either subjective or objective sleep continuity, and some were also independently related to sleep microstructure (i.e., relative power for alpha frequencies) or selected psychological variables (i.e., beliefs or arousal). Conclusions These findings suggest clinically significant alterations in attention and episodic memory in individuals with insomnia. Objective deficits were more pronounced and involved more aspects of performance in a subgroup of individuals with cognitive complaints. These deficits appear associated with sleep continuity, and may also be related to sleep microstructure and dysfunctional beliefs.read more
Citations
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Insomnia and cognitive performance: A systematic review and meta-analysis.
TL;DR: Findings from this meta-analysis indicate insomnia is associated with impairment in objective and subjective cognitive performance, highlighting the utility of treating insomnia to potentially improve cognitive outcomes.
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Co-Morbidity, Mortality, Quality of Life and the Healthcare/Welfare/Social Costs of Disordered Sleep: A Rapid Review
Sergio Garbarino,Paola Lanteri,Paolo Durando,Nicola Magnavita,Walter G. Sannita,Walter G. Sannita +5 more
TL;DR: The high incidence and direct/indirect healthcare and welfare costs of sleep disorders and poor sleep currently constitute a major medical problem.
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Quality of life, problems, and needs of disease-free breast cancer survivors 5 years after diagnosis.
TL;DR: There appears to be a need for ongoing screening and support regarding fatigue, sleep problems, cognitive problems, arthralgia/pain, menopausal/sexual symptoms, physical performance, and weight problems during and several years following breast cancer therapy.
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Sleep and cognitive performance: cross-sectional associations in the UK Biobank
Simon D. Kyle,Claire E. Sexton,Bernd Feige,Annemarie I. Luik,Jacqueline M. Lane,Richa Saxena,Simon G. Anderson,David A. Bechtold,William G Dixon,Max A. Little,David W. Ray,Dieter Riemann,Colin A. Espie,Martin K. Rutter,Kai Spiegelhalder +14 more
TL;DR: The results suggest that after adjustment for potential confounding variables, frequent insomnia symptoms may be associated with a small statistical advantage, which is unlikely to be clinically meaningful, on simple neurocognitive tasks.
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Personality and Sleep Quality: Evidence from Four Prospective Studies
TL;DR: Replicable findings across samples support longitudinal associations between personality and sleep quality, and substantiated previous findings that poor sleep quality is associated with detrimental personality trajectories.
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