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verbal learning and memory
Also known as: verbal learning and memory, verbal learning
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Investigating the impact of sleep quality on cognitive functions ... frontiersin.org 15 facts
claimThe more pronounced negative effect of poor sleep quality on verbal learning and memory in Tokyo students may be attributed to intense academic pressure, longer study hours, or cultural factors.
formulaThe Rey Auditory Verbal Learning Test (RAVLT) scores represent the total number of words recalled across trials.
claimThe study found that the relationship between sleep quality and verbal learning and memory was stronger in Tokyo than in London, a finding described as novel in the literature.
claimThe negative impact of poor sleep quality on verbal learning and memory is more pronounced among university students in Tokyo compared to those in London, indicating that cultural context moderates the relationship between sleep quality and cognitive performance.
measurementIn a moderation analysis of university students in Tokyo and London, the relationship between sleep quality (measured by PSQI) and RAVLT performance showed a standardized regression coefficient (β) of -0.35 (p < 0.001), indicating that poorer sleep quality is associated with lower verbal learning and memory scores across both cities.
claimIn a study comparing university students in Tokyo and London, the impact of sleep quality (measured by PSQI scores) on verbal learning and memory (measured by the RAVLT) is more pronounced in the cultural context of Tokyo compared to London.
claimThe relationship between sleep quality and verbal learning and memory is stronger in Tokyo university students than in London university students.
measurementThe correlation between Pittsburgh Sleep Quality Index (PSQI) scores and Rey Auditory Verbal Learning Test (RAVLT) performance is -0.32 (p < 0.001), indicating a moderate negative relationship between sleep quality and verbal learning and memory.
claimResearchers hypothesize that intense academic pressure and long study hours in Tokyo may exacerbate the negative effects of poor sleep on memory consolidation processes, leading to a more pronounced decline in verbal learning and memory performance compared to London.
referenceThe Rey Auditory Verbal Learning Test (RAVLT) assesses verbal learning and memory through a series of word recall trials, as established by McMinn et al. in 1988.
claimChronic sleep deprivation among Japanese students may disrupt the neural mechanisms underlying memory consolidation, leading to a decline in verbal learning and memory performance.
measurementIn a moderation analysis of university students in Tokyo and London, the interaction between sleep quality (PSQI) and city on RAVLT performance showed a standardized regression coefficient (β) of -0.20 (p = 0.03), suggesting the relationship between sleep quality and verbal learning and memory is significantly different between the two cities.
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).
measurementStudents in London scored significantly higher on cognitive measures, including verbal learning, memory, attention, executive function, non-verbal reasoning, and cognitive flexibility, compared to students in Tokyo (p < 0.01).
measurementThe Pittsburgh Sleep Quality Index (PSQI) score significantly predicts performance on the Rey Auditory Verbal Learning Test (RAVLT) (β = -0.20, p < 0.001) after controlling for demographic variables, indicating that poorer sleep quality independently predicts lower verbal memory and learning performance.