Evidence map›Paper›PMID 41425174›Full record

ArticleFrontiers in sleep2025

Investigating the impact of sleep quality on cognitive functions among students in Tokyo, Japan, and London, UK.

Joshua Ampofo, Binghai Sun, Geoffrey Bentum-Micah, Li Qinggong, Wang Changfeng, Le Guoan, Qian Xusheng

Abstract read
In one paragraph

Article in Frontiers in sleep, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

8 citing papers in PubMed.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Joshua AmpofoSchool of Psychology, Zhejiang Normal University, Jinhua, China.
Binghai SunSchool of Psychology, Zhejiang Normal University, Jinhua, China.
Geoffrey Bentum-MicahSchool of Public and Administration, University of Electronic Science and Technology of China, Chengdu, China.
Li QinggongSchool of Psychology, Zhejiang Normal University, Jinhua, China.
Wang ChangfengSchool of Psychology, Zhejiang Normal University, Jinhua, China.
Le GuoanSchool of Psychology, Zhejiang Normal University, Jinhua, China.
Qian XushengCollege of Education, Zhejiang Normal University, Jinhua, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: This study focuses on cultural influences and investigates sleep quality's impact on cognitive functions among university students in Tokyo and London. Recognizing sleep as vital for wellbeing and academic success, it explores factors affecting sleep quality and its cognitive impact in diverse educational settings. Methods: A cross-sectional study was conducted with 400 students (200 per city). The Pittsburgh Sleep Quality Index (PSQI) assesses sleep quality. At the same time, cognitive tests, including the Rey Auditory Verbal Learning Test and the Stroop Test, evaluated memory, attention, problem-solving, and executive functions. Results: Significant negative correlations emerged between PSQI scores and cognitive performance, indicating that poorer sleep quality correlated with diminished cognitive abilities across domains. Regression analyses confirmed sleep quality's predictive role in mental performance, controlling for demographics. These findings highlight sleep's critical role in cognitive functions within different cultural contexts. Conclusion: This study underscores sleep quality's importance for academic success and reveals cultural variations influencing sleep patterns among Tokyo and London students. The findings suggest targeted interventions to enhance sleep quality and cognitive functioning in diverse educational settings, considering cultural nuances and lifestyle factors. Further research should explore longitudinal effects and intervention strategies to improve sleep and mental outcomes.

Indexed as

cognitive functionscross-sectional studycultural differencessleep qualityuniversity students

Identifiers

PMID41425174
PMCPMC12713871

What OpenQuestion holds

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.