Outcomes of Semantic Feature Analysis Treatment for Aphasia with and without Apraxia of Speech

Autor/inn/en	Scholl, Dominique I.; McCabe, Patricia; Nickels, Lyndsey; Ballard, Kirrie J.
Titel	Outcomes of Semantic Feature Analysis Treatment for Aphasia with and without Apraxia of Speech
Quelle	In: International Journal of Language & Communication Disorders, 56 (2021) 3, S.485-500 (16 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1368-2822
DOI	10.1111/1460-6984.12597
Schlagwörter	Aphasia; Neurological Impairments; Speech Impairments; Naming; Multiple Disabilities; Outcomes of Treatment; Therapy + Suchen Sie Ihr Suchwort? Expressive Aphasie; Aphasie; Neurodegenerative Erkrankung; Speech impairment; Speech handicap; Speech handicaps; Language handicps; Language impairments; Sprachbehinderung; Multiple disability; Mehrfachbehinderung; Therapie
Abstract	Background: To date, studies have not explored whether a dual diagnosis of aphasia plus apraxia of speech (AOS) versus aphasia alone (APH) affects the response to language-based naming treatments. Aims: To compare the effects of semantic feature analysis (SFA) treatment for individuals with APH versus aphasia plus AOS, and to test if the presence of AOS impacted the effects of treatment. Methods and Procedures: A non-randomized experimental group study was conducted to explore the treatment, generalization and maintenance effects between the AOS and APH groups. Participants included nine individuals with aphasia and 11 with concomitant aphasia and AOS. Dependent measures included lexical accuracy, number of sound-level distortions, and lexical stress and syllable segmentation errors. Outcomes and Results: Both groups showed significantly improved naming accuracy of trained items for up to 2 months post-treatment. Improvement on naming accuracy of untrained items post-treatment, both semantically related and unrelated to trained items, was lower in magnitude. That this may have been due to effects of repeated probing (which included target repetition) or regression to the mean cannot be excluded. There was a tendency for the AOS group to respond slightly better to treatment than the APH group overall, which was not correlated with aphasia severity. Also, measures of phonetic accuracy and fluency improved for both groups, with no main effect of group. Treatment effects did not generalize to formal measures of (untrained) picture naming or expression of correct information units in discourse in a story retelling task. Conclusions and Implications: Findings indicate that individuals with aphasia plus AOS can gain equivalent benefits in word retrieval and production from the language-based SFA treatment as individuals with aphasia alone. This may be, in part, due to the tendency for SFA to incorporate principles of practice that are known to support motor learning in AOS, such as high intensity, random stimulus presentation and variable practice. Findings provide further support for high-intensity practice and use of self-generated features to facilitate maintenance of effects. (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2024/1/01