Mapping the scientific landscape of Dyslexia research in focusing on trends, patterns, and future directions

Document Type : Research Paper

Authors

1 Department of Knowledge and Information Science, Faculty of Educational Sciences and Psychology, University of Birjand, Birjand, Iran

2 Assistant Professor, Department of Psychology, Faculty of Educational Sciences and Psychology, University of Birjand, Birjand, Iran

3 Department of Clinical-Educational Psychology, Central Tehran Branch, Islamic Azad University, Tehran, Iran

10.22098/jld.2025.17405.2252

Abstract

Objective: This study aimed to examine the trends, patterns, and impacts of research in dyslexia from 2015 to 2024.
Methods: The present study was a descriptive-applied research. The study population consisted of all research articles on dyslexia indexed in the Web of Science (WOS) database between 2015 and 2024. The statistical sample included a total of 7,851 articles. For visualization, the following software tools were used: VOSviewer, R programming, and Biblioshiny—a web-based interface of the Bibliometrix library
Results: 18,959 keywords were found in this analysis, of which 2,236 keywords were analyzed for co-occurrence in 6 main clusters. The keywords "Dyslexia," "Learning disability," "Language," "Students," "Developmental dyslexia," and "Phonological awareness" had the highest frequency in the documents related to dyslexia. The countries United States, United Kingdom, and France were the most active in the top research topics in this domain. Harvard University, Florida State University, and the University of California had the highest level of international collaboration and contributions in dyslexia-related research. The international collaboration network also comprised nine distinct collaboration clusters.
Conclusions: The results of this study revealed that scientific publications related to dyslexia have been on the rise in recent years, particularly concentrated in North America, Europe, and Australia. Asian (excluding China), African, and South American countries showed a relatively low level of research in this field. In other words, dyslexia research is primarily concentrated in developed countries, highlighting the need for increased international collaboration, especially with developing nations.

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References

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Journal of Learning Disabilities
Volume 15, Issue 1
December 2025

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