Knowledge Tree
Relations (1)
related 4.64 — strongly supporting 24 facts
Sleep quality and cognitive performance are linked through empirical research demonstrating that poor sleep quality impairs cognitive functions such as memory and executive performance [1], [2]. Studies consistently show an inverse relationship between these two concepts, where improvements in sleep quality are associated with enhanced cognitive performance [3], [4], [5].
Facts (24)
Sources
Investigating the impact of sleep quality on cognitive functions ... frontiersin.org 21 facts
claimPoor sleep quality impairs attention, memory, executive functions, and overall cognitive performance, as documented by Leong and Chee (2023).
claimThe study's conceptual framework examines the connection between sleep quality and cognitive functions in university students from Tokyo, Japan, and London, UK, by combining theoretical viewpoints and empirical evidence to demonstrate the impact of sleep quality on cognitive performance and the role of cultural contexts.
claimThe study demonstrates that differences in sleep quality between university students in Tokyo and London translate into differences in cognitive performance.
claimThe study investigated variations in sleep quality and cognitive performance stemming from distinct cultural contexts and academic pressures in Tokyo and London.
claimThere is an inverse relationship between sleep quality and cognitive performance in both Tokyo and London, where poorer sleep quality (indicated by higher PSQI scores) is associated with lower performance on cognitive tests.
claimPoor sleep quality impairs attention, memory, executive functions, and overall cognitive performance, as documented by Leong and Chee (2023).
procedureThe data collection process for the study on sleep quality and cognitive performance utilized a combination of self-reported questionnaires and standardized cognitive assessments.
claimA proposed study aims to investigate the relationship between circadian alignment, sleep quality, and cognitive performance among students in Tokyo and London, considering cultural and environmental factors.
measurementCorrelations between sleep quality and cognitive performance in Tokyo are statistically significant at p < 0.001.
claimThe magnitude of negative correlations between sleep quality and cognitive performance is consistently larger in Tokyo than in London for all cognitive measures.
referenceRichards et al. (2020) established a negative association between sleep quality and cognitive performance.
claimThe study demonstrates that the strength of the relationship between sleep quality and cognitive performance varies across cultural contexts.
claimThe study investigates the relationship between specific dimensions of sleep quality (duration, consistency, and disturbances) and cognitive performance (memory retention, attention span, problem-solving abilities, and executive functioning) among university students in Tokyo and London.
claimThe cross-sectional design of the study on sleep quality and cognitive functions restricts the ability to draw causal conclusions regarding the relationship between sleep quality and cognitive performance.
claimThe study aims to evaluate how academic stress, lifestyle choices (including exercise, social interactions, dietary patterns, and technology use before bed), and cultural factors (including societal expectations, educational systems, and parental influences) mediate or moderate the association between sleep quality and cognitive performance in university students in Tokyo and London.
claimThe negative relationship between sleep quality and cognitive performance is more pronounced in Tokyo students compared to other groups, likely reflecting higher levels of academic stress and societal pressure.
procedureResearchers utilized multivariate regression analyses, such as SPSS or R, to investigate the connection between sleep quality, assessed through Pittsburgh Sleep Quality Index (PSQI) scores, and cognitive performance while controlling for variables including age, gender, academic discipline, stress levels, and physical activity.
perspectiveFuture research on sleep quality and cognitive performance should utilize longitudinal designs to monitor variations over time, which would help elucidate causal relationships and identify mediating factors like stress or lifestyle choices.
claimThe study found a negative association between sleep quality and cognitive performance, which aligns with research by Richards et al. (2020).
referenceThe study investigating the impact of sleep quality on cognitive functions utilized a cross-sectional design to examine correlations between sleep quality and cognitive performance while accounting for demographic variables, lifestyle choices, and academic stressors across different cultural contexts.
claimResearchers used the Pittsburgh Sleep Quality Index (PSQI) to assess sleep quality in relation to cognitive performance.
How Lack of Sleep Impacts Cognitive Performance and Focus sleepfoundation.org 2 facts
Extent and Health Consequences of Chronic Sleep Loss and ... - NCBI ncbi.nlm.nih.gov 1 fact
claimPain causes sleep fragmentation and changes in an individual's sleep architecture, with symptoms including daytime fatigue, sleepiness, poor sleep quality, delayed sleep onset, and decreased cognitive and motor performance.