Ryoko Katsuki

882 total citations · 1 hit paper
15 papers, 552 citations indexed

About

Ryoko Katsuki is a scholar working on Education, Clinical Psychology and General Health Professions. According to data from OpenAlex, Ryoko Katsuki has authored 15 papers receiving a total of 552 indexed citations (citations by other indexed papers that have themselves been cited), including 11 papers in Education, 9 papers in Clinical Psychology and 4 papers in General Health Professions. Recurrent topics in Ryoko Katsuki's work include Youth Substance Use and School Attendance (11 papers), Child and Adolescent Psychosocial and Emotional Development (6 papers) and Anxiety, Depression, Psychometrics, Treatment, Cognitive Processes (3 papers). Ryoko Katsuki is often cited by papers focused on Youth Substance Use and School Attendance (11 papers), Child and Adolescent Psychosocial and Emotional Development (6 papers) and Anxiety, Depression, Psychometrics, Treatment, Cognitive Processes (3 papers). Ryoko Katsuki collaborates with scholars based in Japan, United States and Malaysia. Ryoko Katsuki's co-authors include Takahiro A. Kato, Hiroaki Kubo, Alan R. Teo, Masaru Tateno, Junichiro Kanazawa, Wataru Ukai, Shigenobu Kanba, Kohei Hayakawa, Mina Sato‐Kasai and Norihiro Shimokawa and has published in prestigious journals such as SHILAP Revista de lepidopterología, PLoS ONE and Scientific Reports.

In The Last Decade

Ryoko Katsuki

14 papers receiving 531 citations

Hit Papers

Internet Addiction, Smartphone Addiction, and Hikikomori ... 2019 2026 2021 2023 2019 50 100 150 200
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.

  1. Internet Addiction, Smartphone Addiction, and Hikikomori Trait in Japanese Young Adult: Social Isolation and Social Network
    2019 237 citations Masaru Tateno, Alan R. Teo et al. Frontiers in Psychiatry profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Ryoko Katsuki Japan 9 370 303 227 131 44 15 552
Pawel Sleczka Germany 8 135 0.4× 255 0.8× 262 1.2× 35 0.3× 51 1.2× 15 468
Jérémie Richard Canada 13 99 0.3× 260 0.9× 168 0.7× 75 0.6× 38 0.9× 37 448
Nilay Kutlu Türkiye 10 129 0.3× 245 0.8× 238 1.0× 30 0.2× 71 1.6× 16 448
Lars Roar Frøyland Norway 6 193 0.5× 106 0.3× 304 1.3× 26 0.2× 47 1.1× 19 410
Rachel Frost United Kingdom 7 88 0.2× 291 1.0× 245 1.1× 62 0.5× 48 1.1× 10 507
Adam Pettitt United States 4 107 0.3× 165 0.5× 179 0.8× 36 0.3× 37 0.8× 7 369
Raúl A. Gutiérrez–García Mexico 11 78 0.2× 241 0.8× 149 0.7× 104 0.8× 66 1.5× 28 456
Rebecca A. Lindsey United States 6 153 0.4× 175 0.6× 240 1.1× 30 0.2× 16 0.4× 9 404
Ching‐Yu Huang United Kingdom 13 178 0.5× 273 0.9× 228 1.0× 29 0.2× 22 0.5× 34 493
Simone Cunningham Canada 11 93 0.3× 348 1.1× 163 0.7× 128 1.0× 75 1.7× 19 584

Countries citing papers authored by Ryoko Katsuki

Since Specialization
Citations

This map shows the geographic impact of Ryoko Katsuki'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 Ryoko Katsuki with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Ryoko Katsuki more than expected).

Fields of papers citing papers by Ryoko Katsuki

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ryoko Katsuki. 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 Ryoko Katsuki. The network helps show where Ryoko Katsuki may publish in the future.

Co-authorship network of co-authors of Ryoko Katsuki

This figure shows the co-authorship network connecting the top 25 collaborators of Ryoko Katsuki. A scholar is included among the top collaborators of Ryoko Katsuki 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 Ryoko Katsuki. Ryoko Katsuki is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

15 of 15 papers shown
1.
Orsolini, Laura, et al.. (2026). Parental bonding and attachment in the hikikomori trajectory. Psychiatry and Clinical Neurosciences. 80(3). 205–214.
2.
Watanabe, Mitsuru, Toshio Matsushima, Yasuhiro Maeda, et al.. (2025). The flow cytometric analysis of depression focusing on modern-type depression and hikikomori: Exploring the link between subtypes of depression and immunological imbalances. Dialogues in Clinical Neuroscience. 27(1). 13–25. 2 indexed citations
3.
Masuda, Ryota, et al.. (2024). Does childhood maltreatment affect hikikomori via traits of modern-type depression?. Journal of Affective Disorders. 360. 50–54. 3 indexed citations
4.
Kato, Takahiro A., et al.. (2023). Pathological social withdrawal in autism spectrum disorder: A case control study of hikikomori in Japan. Frontiers in Psychiatry. 14. 1114224–1114224. 18 indexed citations
5.
Fujimoto, Koji, Masako Hosoi, Ryoko Katsuki, et al.. (2022). Psychological Traits of Patients With Depression Comorbid With Chronic Pain: Are Complaint and Competitive Tendency Related to Pain?. Frontiers in Psychiatry. 13. 825422–825422. 1 indexed citations
6.
Kubo, Hiroaki, Ryoko Katsuki, Masaru Tateno, et al.. (2022). Risk factors of hikikomori among office workers during the COVID-19 pandemic: A prospective online survey. Current Psychology. 42(27). 23842–23860. 12 indexed citations
7.
Kubo, Hiroaki, Daiki Setoyama, Motoki Watabe, et al.. (2021). Plasma acetylcholine and nicotinic acid are correlated with focused preference for photographed females in depressed males: an economic game study. Scientific Reports. 11(1). 2199–2199. 4 indexed citations
8.
Katsuki, Ryoko, Hiroaki Kubo, Naotaka Shinfuku, et al.. (2021). Association between Self-Restraint Behavior, Stigma and Depressive Tendency in Office Workers during the COVID-19 Pandemic in Japan—Self-Restraint Behavior and Depression during the COVID-19. SHILAP Revista de lepidopterología. 2(3). 300–309. 5 indexed citations
9.
Teo, Alan R., Sarah Nelson, Hiroaki Kubo, et al.. (2020). Social withdrawal in major depressive disorder: a case-control study of hikikomori in japan. Journal of Affective Disorders. 274. 1142–1146. 59 indexed citations
10.
Katsuki, Ryoko, Masaru Tateno, Hiroaki Kubo, et al.. (2020). Autism spectrum conditions in hikikomori: A pilot case–control study. Psychiatry and Clinical Neurosciences. 74(12). 652–658. 38 indexed citations
11.
Kato, Takahiro A., Ryoko Katsuki, Hiroaki Kubo, et al.. (2019). Development and validation of the 22‐item Tarumi's Modern‐Type Depression Trait Scale: Avoidance of Social Roles, Complaint, and Low Self‐Esteem (TACS‐22). Psychiatry and Clinical Neurosciences. 73(8). 448–457. 32 indexed citations
12.
Tateno, Masaru, Alan R. Teo, Wataru Ukai, et al.. (2019). Internet Addiction, Smartphone Addiction, and Hikikomori Trait in Japanese Young Adult: Social Isolation and Social Network. Frontiers in Psychiatry. 10. 455–455. 237 indexed citations breakdown →
13.
Katsuki, Ryoko, Ayako Inoue, Nobuki Kuwano, et al.. (2019). Clarifying Deeper Psychological Characteristics of Hikikomori Using the Rorschach Comprehensive System: A Pilot Case–Control Study. Frontiers in Psychiatry. 10. 412–412. 23 indexed citations
14.
Teo, Alan R., Jason I. Chen, Hiroaki Kubo, et al.. (2018). Development and validation of the 25‐item Hikikomori Questionnaire (HQ‐25). Psychiatry and Clinical Neurosciences. 72(10). 780–788. 104 indexed citations
15.
Kubo, Hiroaki, Ryoko Katsuki, Yuriko Suzuki, et al.. (2018). Development of MHFA-based 2-h educational program for early intervention in depression among office workers: A single-arm pilot trial. PLoS ONE. 13(12). e0208114–e0208114. 14 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.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by Pawel Sleczka Breakdown of academic impact, for papers by Jérémie Richard Breakdown of academic impact, for papers by Nilay Kutlu Breakdown of academic impact, for papers by Lars Roar Frøyland Breakdown of academic impact, for papers by Rachel Frost Breakdown of academic impact, for papers by Adam Pettitt Breakdown of academic impact, for papers by Raúl A. Gutiérrez–García Breakdown of academic impact, for papers by Rebecca A. Lindsey Breakdown of academic impact, for papers by Ching‐Yu Huang Breakdown of academic impact, for papers by Simone Cunningham
Rankless by CCL
2026