Original ArticlesLinguistic Aspects of Stuttering Research Updates on the Language–Fluency InterfaceBrundage, Shelley B.; Bernstein Ratner, Nan Author Information Department of Speech, Language, and Hearing Sciences, The George Washington University, Washington, District of Columbia (Dr Brundage); and Department of Hearing and Speech Sciences, University of Maryland, College Park (Dr Bernstein Ratner). Corresponding Author: Shelley B. Brundage, PhD, CCC, BCS-F, Department of Speech, Language, and Hearing Sciences, The George Washington University, 2115 G st NW, Ste 226, Washington, DC 20052 ([email protected]). Author Disclosures: Funding was received from the National Institutes of Health (NIH). Portions of this work were supported by NIDCD R01DC015494. Author disclosures can be found at https://links.lww.com/TLD/A82. Topics in Language Disorders: January/March 2022 - Volume 42 - Issue 1 - p 5-23 doi: 10.1097/TLD.0000000000000269 Buy Metrics Abstract Purpose: Although commonly defined as a speech disorder, stuttering interacts with the language production system in important ways. Our purpose is to summarize research findings on linguistic variables that influence stuttering assessment and treatment. Method and Results: Numerous topics are summarized. First, we review research that has examined linguistic features that increase stuttering frequency and influence where it occurs. Second, we tackle the question of whether or not persons who stutter exhibit subtle language differences or deficits. Next, we explore language factors that appear to influence recovery from early stuttering in children. The final topic discusses the unique challenges inherent in differentially diagnosing stuttering in bilingual children. Clinical implications for each topic are discussed. Discussion: The article concludes with a discussion of the unique differences in the integration of language and speech demands by people who stutter, when compared with people who are typically fluent, and their clinical ramifications. © 2022 Wolters Kluwer Health, Inc. All rights reserved.