Sleep and Cognitive Performance From Teens To Old Age: More Is Not Better

There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

Abstract

<div class="section"> <a class="named-anchor" id="d3066863e226">  </a> <h5 class="section-title" id="d3066863e227">Objectives:</h5> <p id="d3066863e229">To determine the interaction of age and habitual sleep duration in predicting cognitive performance in a large sample of participants aged 15 to 89 years. </p> </div><div class="section"> <a class="named-anchor" id="d3066863e231">  </a> <h5 class="section-title" id="d3066863e232">Methods:</h5> <p id="d3066863e234">This study is a cross-sectional analysis of performance data gathered between January 2012 and September 2013. First-time players ( <i>N</i> = 512823) of three internet cognitive training games measuring processing speed, working memory, visuospatial memory, and arithmetic participated in the study. </p> </div><div class="section"> <a class="named-anchor" id="d3066863e239">  </a> <h5 class="section-title" id="d3066863e240">Results:</h5> <p id="d3066863e242">Performance was based on a measure of speed and accuracy for each game. The relationship between performance and self-reported habitual sleep duration was examined in the sample as a whole and across 10-year age groups starting at age 15 and ending at 75 and older. Performance peaked at 7 h of sleep duration for all three games in the sample as a whole, and the decrements in performance for sleep durations greater than 7 h were either comparable or greater in the youngest as compared to the oldest age groups. </p> </div><div class="section"> <a class="named-anchor" id="d3066863e244">  </a> <h5 class="section-title" id="d3066863e245">Conclusions:</h5> <p id="d3066863e247">These findings challenge the hypothesis that deteriorating cognitive performance with long sleep duration is driven by medical comorbidities associated with aging. Further, these data are consistent with an optimal dose model of sleep and suggest that the model for the homeostatic recovery of cognitive function as a function of sleep duration should incorporate a curvilinear decline with longer duration sleep, indicating that there may be a cost to increased sleep. Replication and further research is essential for clarifying the sleep duration–cognition relationship in youth and adults of all ages. </p> </div>

Related collections

Most cited references 27

Record: found
Abstract: found
Article: not found

Self-reported and measured sleep duration: how similar are they?

Diane S. Lauderdale, Kristen Knutson, Lijing L. Yan … (2008)

Recent epidemiologic studies have found that self-reported duration of sleep is associated with obesity, diabetes, hypertension, and mortality. The extent to which self reports of sleep duration are similar to objective measures and whether individual characteristics influence the degree of similarity are not known. Eligible participants at the Chicago site of the Coronary Artery Risk Development in Young Adults Study were invited to participate in a 2003-2005 ancillary sleep study; 82% (n = 669) agreed. Sleep measurements collected in 2 waves included 3 days each of wrist actigraphy, a sleep log, and questions about usual sleep duration. We estimate the average difference and correlation between subjectively and objectively measured sleep by using errors-in-variables regression models. Average measured sleep was 6 hours, whereas the average from subjective reports was 6.8 hours. Subjective reports increased on average by 34 minutes for each additional hour of measured sleep. Overall, the correlation between reported and measured sleep duration was 0.47. Our model suggests that persons sleeping 5 hours over-reported their sleep duration by 1.2 hours, and those sleeping 7 hours over-reported by 0.4 hours. The correlations and average differences between self-reports and measured sleep varied by health, sociodemographic, and sleep characteristics. In a population-based sample of middle-aged adults, subjective reports of habitual sleep are moderately correlated with actigraph-measured sleep, but are biased by systematic over-reporting. The true associations between sleep duration and health may differ from previously reported associations between self-reported sleep and health.

0 comments Cited 426 times – based on 0 reviews      Review now

Bookmark

Record: found
Abstract: found
Article: not found

The influence of sleep quality, sleep duration and sleepiness on school performance in children and adolescents: A meta-analytic review.

Julia F Dewald, Anne M. Meijer, Frans J Oort … (2010)

Insufficient sleep, poor sleep quality and sleepiness are common problems in children and adolescents being related to learning, memory and school performance. The associations between sleep quality (k=16 studies, N=13,631), sleep duration (k=17 studies, N=15,199), sleepiness (k=17, N=19,530) and school performance were examined in three separate meta-analyses including influential factors (e.g., gender, age, parameter assessment) as moderators. All three sleep variables were significantly but modestly related to school performance. Sleepiness showed the strongest relation to school performance (r=-0.133), followed by sleep quality (r=0.096) and sleep duration (r=0.069). Effect sizes were larger for studies including younger participants which can be explained by dramatic prefrontal cortex changes during (early) adolescence. Concerning the relationship between sleep duration and school performance age effects were even larger in studies that included more boys than in studies that included more girls, demonstrating the importance of differential pubertal development of boys and girls. Longitudinal and experimental studies are recommended in order to gain more insight into the different relationships and to develop programs that can improve school performance by changing individuals' sleep patterns. Copyright 2009 Elsevier Ltd. All rights reserved.