Observational studyArchives of physical medicine and rehabilitation2026
An Observational Examination of Circumlocution Ability in Acute Left-Hemisphere Stroke Survivors as a Possible Estimative Behavioral Measure of Very Mild Aphasia.
Observational study in Archives of physical medicine and rehabilitation, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
objectiveTo evaluate whether measuring circumlocution ability may help identify very mild aphasia (VMA).
designA retrospective, cross-sectional analysis of a subset of data from an observational longitudinal study. SETTINGS: Two urban hospitals, research laboratory office rooms, participants' homes, or on Zoom.
participantsWe recruited stroke survivors and controls via convenience sampling and word-of-mouth. For eligibility, stroke survivors required a formal diagnosis of a primary acute ischemic left cerebrum stroke, normal/corrected-to-normal hearing and vision, and needed to be proficient English speakers. Controls had to have an unremarkable MRI and/or report no history of stroke, traumatic brain injury, or other neurologic conditions. Our sample consisted of 3 groups: 12 stroke survivors with mild to severe aphasia per the Western Aphasia Battery-Revised (WAB-R), 15 stroke survivors without aphasia per the WAB-R, and 15 controls. Ten of the 15 stroke survivors without aphasia per WAB-R had subjective and/or objective evidence of VMA.
interventionsNot applicable.
main outcome measuresThe total number of informative features and the average number and type of informative features participants produced per item description during a task created to measure participants' circumlocution ability.
resultsThere were significant differences in the total number of informative features produced between all three groups, F(2, 39)=14.75, P<.001. There was a significant interaction between group and informative feature type, F(5.11, 99.55)=5.76, P<.001. Adding our circumlocution measure to a predictive model accounted for more of the variance in discourse informativeness than the base model with naming ability only, ∆F(1, 22)=15.86, P<.001, ∆Adjusted R
conclusionsMeasuring circumlocution ability, which can be done using a simple naming task, may help identify VMA. However, larger samples of acute stroke survivors will be needed to evaluate diagnostic potential.
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