Subjectively and Objectively Measured Sleep Predict Differing Aspects of Cognitive Functioning in Adults

Abstract

Objective To examine associations between subjectively-reported sleep and objectively-measured sleep (i.e., actigraphy) with different domains of cognitive functioning, and determine whether age may moderate these associations. Method In this cross-sectional study, a total of 489 participants (mean age = 45.4 years; SD = 18.8) completed a self-reported sleep measure and one week of actigraphy. Participants also completed a battery of cognitive tests measuring episodic memory, social cognition, executive functioning, and complex cognition (i.e., reasoning, visuospatial, and language abilities). Results Multiple regression analyses revealed that greater objective sleep quality and longer onset latencies were both associated with better performance on measures of conceptual flexibility. In contrast, subjective sleep quality was not associated with performance in any cognitive domain after accounting for objective sleep variables. Age moderated sleep–cognition relationships in differing ways based on cognitive domain and facet of sleep assessed. For example, whereas poorer subjective sleep quality was associated with poorer complex cognition in younger, but not older adults, poorer objective sleep quality was associated with poorer conceptual flexibility in older, but not younger adults. Conclusions Objectively-measured and self-reported sleep are associated with differing aspects of executive functioning, with the latter related to executive functioning broadly and the former associated with conceptual flexibility in particular. Age moderates sleep–cognition relationships differentially depending on the method by which sleep quality and quantity are measured.

The Impact of Cognitive Behavioral Therapy for Insomnia on Sleep Log and Actigraphy Outcomes in People with Multiple Sclerosis: A Secondary Analysis

“…Selfreport sleep measures assess one's beliefs and perceptions about sleep, whereas objective sleep measures (ie, actigraphy) assess sleep/wake behaviors. 48 Adults often perceive and report their sleep disturbances to be more severe than measured by objective measures, 11 which may be due to anxiety, depression, or other factors. 12,13 Another issue with sleep logs is that participants are asked to estimate the time (not watch the clock) and to remember that estimate the next morning to complete the sleep log.…”

Efficacy of Triprolidine in the Treatment of Temporary Sleep Disturbance

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Actigraphic sleep patterns and cognitive decline in the Hispanic Community Health Study/Study of Latinos

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