Subjectively and Objectively Measured Sleep Predict Differing Aspects of Cognitive Functioning in Adults
John P K Bernstein1, Alyssa DeVito1, Matthew Calamia1
1Louisiana State University, Department of Psychology, Baton Rouge, LA, USA.
Summary
Objective sleep quality and longer sleep onset are linked to better conceptual flexibility. Subjective sleep quality did not show associations with cognitive function. Age significantly moderates these sleep-cognition relationships.
Area of Science:
- Cognitive Neuroscience
- Sleep Science
Background:
- Subjective sleep reports and objective actigraphy measures may differentially relate to cognitive functioning.
- Understanding how age influences these sleep-cognition associations is crucial for targeted interventions.
Purpose of the Study:
- To investigate the relationship between subjective and objective sleep measures with various cognitive domains.
- To determine if age moderates the associations between sleep and cognition.
Main Methods:
- A cross-sectional study involving 489 participants (mean age 45.4 years).
- Utilized self-reported sleep questionnaires and one week of actigraphy.
- Administered cognitive tests assessing episodic memory, social cognition, executive functioning, and complex cognition.
Main Results:
- Greater objective sleep quality and longer sleep onset latency were associated with better conceptual flexibility.
- Subjective sleep quality was not significantly associated with any cognitive domain when controlling for objective sleep.
- Age moderated sleep-cognition relationships; for instance, subjective sleep quality impacted complex cognition in younger adults, while objective sleep quality affected conceptual flexibility in older adults.
Conclusions:
- Objective and subjective sleep measures are associated with distinct aspects of executive functioning.
- Objective sleep is particularly linked to conceptual flexibility, whereas subjective sleep relates more broadly to executive functioning.
- Age differentially modulates sleep-cognition associations based on the sleep measurement method.
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