The role and use of event-related potentials in aphasia: A scoping review

•ERPs have been used to study people with aphasia but the literature is scant.•The 117 studies identified in this review were divided among 6 domains of inquiry.•The wide variety of ERP components used show broad potential for studying aphasic language.•No single component or domain has been deeply...

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Bibliographic Details
Published in:Brain and language 2021-08, Vol.219, p.104966-104966, Article 104966
Main Authors: Silkes, JoAnn P., Anjum, Javad
Format: Article
Language:English
Subjects:
AEP
Aphasia
Auditory evoked potential
ERP
Event-related potential
Event-related potentials
Language processing
Left hemisphere
Scoping review
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Summary:•ERPs have been used to study people with aphasia but the literature is scant.•The 117 studies identified in this review were divided among 6 domains of inquiry.•The wide variety of ERP components used show broad potential for studying aphasic language.•No single component or domain has been deeply studied, so conclusions are limited.•Inconsistent terms used and participant descriptions are also limiting. Event-related potentials (ERPs) can provide important insights into underlying language processes in both unimpaired and neurologically impaired populations and may be particularly useful in aphasia. This scoping review was conducted to provide a comprehensive summary of how ERPs have been used with people with aphasia (PWA), with the goal of exploring the potential clinical application of ERPs in aphasia assessment and treatment. We identified 117 studies that met inclusionary criteria, reflecting six thematic domains of inquiry that relate to understanding both unimpaired and aphasic language processing and the use of ERPs with PWA. In these studies, a wide variety of ERP components were reported. Inconsistencies in reporting of participant characteristics and study protocols limit our ability to generalize beyond the individual studies and understand implications for clinical applicability. We discuss the potential roles of ERPs in aphasia management and make recommendations for further developing ERPs for clinical utility in PWA.
ISSN:0093-934X
1090-2155
DOI:10.1016/j.bandl.2021.104966