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. 2022 Nov 17;65(11):4327-4345.
doi: 10.1044/2022_JSLHR-22-00104. Epub 2022 Oct 20.

A Scoping Review on the Effects of Emotional Stimuli on Language Processing in People With Aphasia

Deena Schwen Blackett  1 , Stacy M Harnish  2
Affiliations

A Scoping Review on the Effects of Emotional Stimuli on Language Processing in People With Aphasia

Deena Schwen Blackett et al. J Speech Lang Hear Res. .

Abstract

Purpose: Emotional stimuli have been shown to influence language processing (both language comprehension and production) in people with aphasia (PWA); however, this finding is not universally reported. Effects of emotional stimuli on language performance in PWA could have clinical and theoretical implications, yet the sparsity of studies and variability among them make it difficult to appraise the significance of this effect. The purpose of this scoping review was to (a) determine the extent and range of research examining the effect of emotional stimuli on language processing in PWA, (b) summarize and evaluate research findings, and (c) identify gaps in the literature that may warrant future study.

Method: PsycINFO, PubMed, Web of Science, and Cumulative Index to Nursing and Allied Health Literature databases were systematically searched for articles that compared performance in response to emotional and nonemotional stimuli on at least one language measure in one or more adults with aphasia. Data related to methods and results were extracted from each article and charted in Excel.

Results: Five hundred forty unique articles were found, and 18 articles, consisting of 19 studies, met inclusion/exclusion criteria for this review. Of the 19 studies included, 11 studies reported enhanced performance on a language task for emotional compared to nonemotional stimuli, seven reported no difference, and one reported worse performance for emotional compared to nonemotional stimuli. Possible modulating variables such as task type, measurement, stimulus characteristics, and sample characteristics are discussed along with gaps in the literature.

Conclusion: The extent of research in this area is sparse; however, there does appear to be some early evidence for better performance in response to emotional over nonemotional stimuli in PWA for some, but not all, language processes investigated.

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Figures

Figure 1.
Figure 1.
The Preferred Reporting Items for Systematic Reviews and Meta-Analyses diagram (Moher et al., 2009).
See this image and copyright information in PMC

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