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- The study 'Investigating the impact of sleep quality on cognitive functions' utilized a moderation analysis to test whether the relationship between sleep quality (PSQI scores) and cognitive performance (measured by RAVLT, Stroop Test, RPM, and WCST) differs significantly between university students in Tokyo and London.
- The study used the Pittsburgh Sleep Quality Index (PSQI), actigraphy, and a battery of cognitive assessments including the Rey Auditory Verbal Learning Test (RAVLT), Stroop Test, Raven's Progressive Matrices (RPM), and Wisconsin Card Sorting Test (WCST) to measure sleep and cognitive performance.
- The correlation between Pittsburgh Sleep Quality Index (PSQI) scores and Stroop Test performance is -0.28 (p < 0.001), indicating a weak to moderate negative relationship between sleep quality and attention and executive function.
- Higher Pittsburgh Sleep Quality Index (PSQI) scores, which indicate poorer sleep quality, are associated with lower performance on the Rey Auditory Verbal Learning Test (RAVLT), Stroop Test, Raven's Progressive Matrices (RPM), and Wisconsin Card Sorting Test (WCST) (p < 0.001).
- The Pittsburgh Sleep Quality Index (PSQI) score significantly predicts performance on the Stroop Test (β = -0.15, p < 0.001) after controlling for demographic variables, indicating that poor sleep quality has an independent negative influence on attention and executive function.
- The correlation between Pittsburgh Sleep Quality Index (PSQI) scores and the Rey Auditory Verbal Learning Test (RAVLT) is r = -0.32 (p < 0.001); the correlation with the Stroop Test is r = -0.28 (p < 0.001); the correlation with Raven's Progressive Matrices (RPM) is r = -0.25 (p < 0.001); and the correlation with the Wisconsin Card Sorting Test (WCST) is r = -0.35 (p < 0.001).
- Poorer sleep quality, as measured by the Pittsburgh Sleep Quality Index (PSQI), is significantly associated with slower Stroop Test performance (β = −0.25, p < 0.001) across both Tokyo and London student populations.
- In regression analyses predicting cognitive performance from Pittsburgh Sleep Quality Index (PSQI) scores, the standardized regression coefficient (β) for the RAVLT is -0.20 (SE 0.05, p < 0.001), for the Stroop Test is -0.15 (SE 0.04, p < 0.001), for the RPM is -0.12 (SE 0.03, p < 0.01), and for the WCST is -0.23 (SE 0.06, p < 0.001).
- The correlation between Pittsburgh Sleep Quality Index (PSQI) scores and Stroop test performance is −0.35 (p < 0.001) for students in Tokyo and −0.20 (p < 0.01) for students in London.
- Regression analyses indicate that Pittsburgh Sleep Quality Index (PSQI) scores significantly predict performance on cognitive measures (RAVLT, Stroop Test, RPM, and WCST) even after controlling for demographic variables (age, gender, socioeconomic status) and actigraphy-measured sleep duration and efficiency.
- The correlation coefficient (r) between Pittsburgh Sleep Quality Index (PSQI) scores and Stroop Test performance is -0.28 (p < 0.001).
- The relationship between Pittsburgh Sleep Quality Index (PSQI) scores and Stroop Test performance does not differ significantly between students in Tokyo and London (β = −0.10, p = 0.21).
- The relationship between Pittsburgh Sleep Quality Index (PSQI) scores and Stroop Test performance does not differ significantly between Tokyo and London (β = −0.10, p = 0.21), suggesting the magnitude of the effect of sleep quality on attention and executive function is consistent across both cultural contexts.
- The correlation between Pittsburgh Sleep Quality Index (PSQI) scores and Stroop Test performance is −0.35 in Tokyo and −0.20 in London.
- Poor sleep quality, as measured by the Pittsburgh Sleep Quality Index (PSQI), is significantly associated with lower cognitive performance across domains including verbal learning and memory (measured by the Rey Auditory Verbal Learning Test), attention and executive function (measured by the Stroop Test), non-verbal reasoning (measured by the Raven's Progressive Matrices), and cognitive flexibility (measured by the Wisconsin Card Sorting Test).
- A study investigating university students in Tokyo, Japan, and London, UK, found significant negative associations between sleep quality (measured by the Pittsburgh Sleep Quality Index) and cognitive performance across domains including verbal learning and memory (RAVLT), attention and executive function (Stroop Test), non-verbal reasoning (RPM), and cognitive flexibility (WCST).
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Investigating the impact of sleep quality on cognitive functions ... frontiersin.org 16 facts
referenceThe study 'Investigating the impact of sleep quality on cognitive functions' utilized a moderation analysis to test whether the relationship between sleep quality (PSQI scores) and cognitive performance (measured by RAVLT, Stroop Test, RPM, and WCST) differs significantly between university students in Tokyo and London.
procedureThe study used the Pittsburgh Sleep Quality Index (PSQI), actigraphy, and a battery of cognitive assessments including the Rey Auditory Verbal Learning Test (RAVLT), Stroop Test, Raven's Progressive Matrices (RPM), and Wisconsin Card Sorting Test (WCST) to measure sleep and cognitive performance.
measurementThe correlation between Pittsburgh Sleep Quality Index (PSQI) scores and Stroop Test performance is -0.28 (p < 0.001), indicating a weak to moderate negative relationship between sleep quality and attention and executive function.
measurementHigher Pittsburgh Sleep Quality Index (PSQI) scores, which indicate poorer sleep quality, are associated with lower performance on the Rey Auditory Verbal Learning Test (RAVLT), Stroop Test, Raven's Progressive Matrices (RPM), and Wisconsin Card Sorting Test (WCST) (p < 0.001).
measurementThe Pittsburgh Sleep Quality Index (PSQI) score significantly predicts performance on the Stroop Test (β = -0.15, p < 0.001) after controlling for demographic variables, indicating that poor sleep quality has an independent negative influence on attention and executive function.
measurementThe correlation between Pittsburgh Sleep Quality Index (PSQI) scores and the Rey Auditory Verbal Learning Test (RAVLT) is r = -0.32 (p < 0.001); the correlation with the Stroop Test is r = -0.28 (p < 0.001); the correlation with Raven's Progressive Matrices (RPM) is r = -0.25 (p < 0.001); and the correlation with the Wisconsin Card Sorting Test (WCST) is r = -0.35 (p < 0.001).
measurementPoorer sleep quality, as measured by the Pittsburgh Sleep Quality Index (PSQI), is significantly associated with slower Stroop Test performance (β = −0.25, p < 0.001) across both Tokyo and London student populations.
measurementIn regression analyses predicting cognitive performance from Pittsburgh Sleep Quality Index (PSQI) scores, the standardized regression coefficient (β) for the RAVLT is -0.20 (SE 0.05, p < 0.001), for the Stroop Test is -0.15 (SE 0.04, p < 0.001), for the RPM is -0.12 (SE 0.03, p < 0.01), and for the WCST is -0.23 (SE 0.06, p < 0.001).
measurementThe correlation between Pittsburgh Sleep Quality Index (PSQI) scores and Stroop test performance is −0.35 (p < 0.001) for students in Tokyo and −0.20 (p < 0.01) for students in London.
claimRegression analyses indicate that Pittsburgh Sleep Quality Index (PSQI) scores significantly predict performance on cognitive measures (RAVLT, Stroop Test, RPM, and WCST) even after controlling for demographic variables (age, gender, socioeconomic status) and actigraphy-measured sleep duration and efficiency.
measurementThe correlation coefficient (r) between Pittsburgh Sleep Quality Index (PSQI) scores and Stroop Test performance is -0.28 (p < 0.001).
measurementThe relationship between Pittsburgh Sleep Quality Index (PSQI) scores and Stroop Test performance does not differ significantly between students in Tokyo and London (β = −0.10, p = 0.21).
measurementThe relationship between Pittsburgh Sleep Quality Index (PSQI) scores and Stroop Test performance does not differ significantly between Tokyo and London (β = −0.10, p = 0.21), suggesting the magnitude of the effect of sleep quality on attention and executive function is consistent across both cultural contexts.
measurementThe correlation between Pittsburgh Sleep Quality Index (PSQI) scores and Stroop Test performance is −0.35 in Tokyo and −0.20 in London.
claimPoor sleep quality, as measured by the Pittsburgh Sleep Quality Index (PSQI), is significantly associated with lower cognitive performance across domains including verbal learning and memory (measured by the Rey Auditory Verbal Learning Test), attention and executive function (measured by the Stroop Test), non-verbal reasoning (measured by the Raven's Progressive Matrices), and cognitive flexibility (measured by the Wisconsin Card Sorting Test).
claimA study investigating university students in Tokyo, Japan, and London, UK, found significant negative associations between sleep quality (measured by the Pittsburgh Sleep Quality Index) and cognitive performance across domains including verbal learning and memory (RAVLT), attention and executive function (Stroop Test), non-verbal reasoning (RPM), and cognitive flexibility (WCST).