Osamu Itani

3.5k total citations · 2 hit papers
78 papers, 2.4k citations indexed

About

Osamu Itani is a scholar working on Experimental and Cognitive Psychology, Education and Cognitive Neuroscience. According to data from OpenAlex, Osamu Itani has authored 78 papers receiving a total of 2.4k indexed citations (citations by other indexed papers that have themselves been cited), including 42 papers in Experimental and Cognitive Psychology, 21 papers in Education and 19 papers in Cognitive Neuroscience. Recurrent topics in Osamu Itani's work include Sleep and related disorders (42 papers), Sleep and Wakefulness Research (18 papers) and Sleep and Work-Related Fatigue (14 papers). Osamu Itani is often cited by papers focused on Sleep and related disorders (42 papers), Sleep and Wakefulness Research (18 papers) and Sleep and Work-Related Fatigue (14 papers). Osamu Itani collaborates with scholars based in Japan, United States and India. Osamu Itani's co-authors include Yoshitaka Kaneita, Maki Jike, Norio Watanabe, Daniel J. Buysse, Takashi Ohida, Yuichiro Otsuka, Hideyuki Kanda, Yoneatsu Osaki, Susumu Higuchi and Sachi Nakagome and has published in prestigious journals such as SHILAP Revista de lepidopterología, PLoS ONE and Journal of Affective Disorders.

In The Last Decade

Osamu Itani

71 papers receiving 2.4k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Short sleep duration and health outcomes: a systematic review, meta-analysis, and meta-regression

2016 846 citations Osamu Itani, Maki Jike et al. Sleep Medicine profile →
Long sleep duration and health outcomes: A systematic review, meta-analysis and meta-regression

2017 530 citations Maki Jike, Osamu Itani et al. profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Osamu Itani Japan	20	1.5k	585	441	441	320	78	2.4k
Maki Jike Japan	17	1.4k 0.9×	530 0.9×	393 0.9×	412 0.9×	174 0.5×	41	2.0k
Bei Bei Australia	31	2.0k 1.3×	941 1.6×	792 1.8×	228 0.5×	248 0.8×	129	3.5k
Frances Taggart United Kingdom	10	1.7k 1.1×	753 1.3×	935 2.1×	419 1.0×	93 0.3×	13	2.5k
Lisa Matricciani Australia	19	1.7k 1.1×	842 1.4×	1.0k 2.3×	300 0.7×	96 0.3×	41	2.5k
Heather E. Gunn United States	18	913 0.6×	403 0.7×	165 0.4×	316 0.7×	150 0.5×	33	1.6k
Angelika Schlarb Germany	31	1.9k 1.3×	944 1.6×	229 0.5×	221 0.5×	166 0.5×	166	3.4k
Cun-Xian Jia China	34	982 0.6×	404 0.7×	529 1.2×	276 0.6×	558 1.7×	200	4.0k
Fu‐Jun Jia China	22	824 0.5×	552 0.9×	189 0.4×	189 0.4×	108 0.3×	93	2.0k
Melisa Moore United States	17	1.1k 0.7×	525 0.9×	272 0.6×	158 0.4×	131 0.4×	39	1.7k
Bridget A. Hearon United States	19	1.1k 0.8×	341 0.6×	425 1.0×	387 0.9×	91 0.3×	37	2.3k

Countries citing papers authored by Osamu Itani

Since Specialization

Citations

This map shows the geographic impact of Osamu Itani's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Osamu Itani with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Osamu Itani more than expected).

Fields of papers citing papers by Osamu Itani

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Osamu Itani. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Osamu Itani. The network helps show where Osamu Itani may publish in the future.

Co-authorship network of co-authors of Osamu Itani

This figure shows the co-authorship network connecting the top 25 collaborators of Osamu Itani. A scholar is included among the top collaborators of Osamu Itani based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Osamu Itani. Osamu Itani is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

Otsuka, Yuichiro, Yoshitaka Kaneita, Osamu Itani, et al.. (2025). Association Between Alcohol Use Patterns and Insomnia Symptoms or Poor Sleep Quality Among Adult Women: An Internet Cross-Sectional Survey in Japan. Clocks & Sleep. 7(1). 5–5. 1 indexed citations

Otsuka, Yuichiro, et al.. (2025). Predictors of internet addiction among adolescents in Japan: A two-year prospective cohort study. Computers in Human Behavior Reports. 19. 100779–100779. 2 indexed citations

Otsuka, Yuichiro, et al.. (2024). Impact of Teleworking Practices on Presenteeism: Insights from a Cross-Sectional Study of Japanese Teleworkers During COVID-19. Behavioral Sciences. 14(11). 1067–1067. 5 indexed citations

Otsuka, Yuichiro, et al.. (2024). Association between commuting and mental health among Japanese adolescents. Psychiatry and Clinical Neurosciences. 78(10). 588–594. 3 indexed citations

Otsuka, Yuichiro, Yoshitaka Kaneita, Osamu Itani, & Yuuki Matsumoto. (2023). A School-Based Program for Problematic Internet Use for Adolescents in Japan. Children. 10(11). 1754–1754. 7 indexed citations

Matsumoto, Yuuki, et al.. (2023). Optimal telework frequency in terms of sleep and labor productivity depends on the workers’ psychological distress: A cross-sectional study in Tokyo, Japan. PLoS ONE. 18(6). e0286699–e0286699. 2 indexed citations

Matsumoto, Yuuki, et al.. (2023). Relationship between Telework Jetlag and Perceived Psychological Distress among Japanese Hybrid Workers. SHILAP Revista de lepidopterología. 5(4). 604–614. 1 indexed citations

Otsuka, Yuichiro, et al.. (2022). Associations among Alcohol Drinking, Smoking, and Nonrestorative Sleep: A Population-Based Study in Japan. SHILAP Revista de lepidopterología. 4(4). 595–606. 10 indexed citations

Otsuka, Yuichiro, et al.. (2022). Awareness, Attitudes, and Concerns Regarding Heated Tobacco Products Among Physicians in Japan. Journal of Epidemiology. 33(9). 441–449. 5 indexed citations

10.

Furihata, Ryuji, et al.. (2022). The validity and reliability of the Japanese version of RU-SATED. Sleep Medicine. 91. 109–114. 13 indexed citations

11.

Otsuka, Yuichiro, Osamu Itani, Yuuki Matsumoto, & Yoshitaka Kaneita. (2022). Associations between Coping Profile and Work Performance in a Cohort of Japanese Employees. International Journal of Environmental Research and Public Health. 19(8). 4806–4806. 7 indexed citations

12.

Otsuka, Yuichiro, Yoshitaka Kaneita, Osamu Itani, et al.. (2021). The association between Internet usage and sleep problems among Japanese adolescents: three repeated cross-sectional studies. SLEEP. 44(12). 30 indexed citations

13.

Otsuka, Yuichiro, Osamu Itani, Yuuki Matsumoto, & Yoshitaka Kaneita. (2021). Associations between coping strategies and insomnia: a longitudinal study of Japanese workers. SLEEP. 45(2). 12 indexed citations

14.

Kuwabara, Yuki, Aya Kinjo, Maki Jike, et al.. (2021). Trends in the co-use of alcohol and tobacco among Japanese adolescents: periodical nationwide cross-sectional surveys 1996–2017. BMJ Open. 11(8). e045063–e045063. 7 indexed citations

15.

Itani, Osamu, Yuichiro Otsuka, Yuuki Matsumoto, et al.. (2021). A nationwide cross-sectional study of difficulty waking up for school among adolescents. SLEEP. 44(11). 3 indexed citations

16.

Otsuka, Yuichiro, Yoshitaka Kaneita, Osamu Itani, et al.. (2020). The relationship between subjective happiness and sleep problems in Japanese adolescents. Sleep Medicine. 69. 120–126. 37 indexed citations

17.

Otsuka, Yuichiro, Yoshitaka Kaneita, Osamu Itani, et al.. (2017). Relationship between stress coping and sleep disorders among the general Japanese population: a nationwide representative survey. Sleep Medicine. 37. 38–45. 46 indexed citations

18.

Itani, Osamu, Maki Jike, Norio Watanabe, & Yoshitaka Kaneita. (2016). Short sleep duration and health outcomes: a systematic review, meta-analysis, and meta-regression. Sleep Medicine. 32. 246–256. 846 indexed citations breakdown →

19.

Ikeda, Maki, Yoshitaka Kaneita, Shuji Kondo, Osamu Itani, & Takashi Ohida. (2012). Epidemiological study of sleep habits among four-and-a-half-year-old children in Japan. Sleep Medicine. 13(7). 787–794. 20 indexed citations

20.

Shimizu, Ikki, Yasuhisa Fujii, Osamu Itani, et al.. (2001). Five Suspected Cases of Nonautoimmune Fulminant Type 1 Diabetes Mellitus. 44(4). 315–322. 6 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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