Using word-picture verification to inform language impairment locus in chronic post-stroke aphasia.
Alexandra Z Durfee, Stacy M Harnish
PMID 36386772WHAT IT FOUND
In 16 people with chronic aphasia, word-picture verification scores tracked closely with standard comprehension tests.
Errors differed from naming: more semantic errors occurred during verification, while phonological errors were higher during naming. This helps distinguish input from output deficits.
Key findings
01Word-picture verification accuracy correlated significantly with overall aphasia severity and receptive language measures.
02Participants made significantly more semantic errors during word-picture verification than during confrontation naming.
03Participants produced significantly more phonological errors during confrontation naming than during auditory word-picture verification.
STILL TO COME
How it was doneWhat they foundWhat it means for SLPs
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What it does not show
The sample size was small (16 participants). The sample was homogeneous in demographic characteristics. The study used copyrighted stimuli (BNT pictures), which limits accessibility for some clinicians. The study did not include cognitive measures, which may influence performance.
Declared interests
The study was funded by The Ohio State University. No other conflicts of interest were declared.
The easy way to misread this
Do not assume that word-picture verification is a direct substitute for naming tests. The study found that the two tasks produce different error patterns, indicating they measure distinct aspects of language processing. Verification is more sensitive to semantic access issues, while naming is more sensitive to phonological output issues.