Generalisation and maintenance across word classes : comparing the efficacy of two anomia treatments in improving verb naming

dc.contributor.authorLai, Weisong V.
dc.contributor.authorSilkes, J.P.
dc.contributor.authorMinkina, I.
dc.contributor.authorKendall, D.L. (Diane)
dc.date.accessioned2020-04-23T14:21:29Z
dc.date.available2020-04-23T14:21:29Z
dc.date.issued2019
dc.description.abstractBACKGROUND : Many language treatments have been developed to remediate anomia, a debilitating and pervasive symptom of aphasia. The two major types of anomia treatments, semantic and phonological, have been shown to improve spoken production of trained words. However, generalisation to untrained words has been considerably variable and few studies have examined the improvement of untrained words from a different word class despite the presence of unbalanced noun-verb impairments in the majority of people with aphasia. AIM : This retrospective study investigated within and between treatment group effects of two anomia treatments (Semantic Feature Analysis, SFA, and Phonomotor Treatment, PMT) on naming of untrained verbs. METHODS AND PROCEDURES : The data for this study were retrospectively analysed from a randomised controlled trial with 57 persons with aphasia randomised to one of two treatment groups. Each participant received 56–60 hours of intensively delivered treatment over 6 weeks, with testing before, immediately after, and three months after treatment termination. OUTCOMES AND RESULTS : There was no significant between-group difference on confrontation naming of untrained verbs immediately post-treatment or three months following treatment termination (maintenance). Significant within-group findings were evident immediately post-treatment for the individuals in the SFA group and at maintenance for the PMT group. CONCLUSIONS : Our results show that neither SFA nor PMT was superior at inducing generalisation effects across word class (i.e. from nouns to verbs). These findings were consistent with the between-group results from the larger randomised controlled trial from which these data are analysed (Kendall, Oelke, Allen, Torrence, & Nadeau, 2018) in that there was no between-group difference in generalization to untrained words that do not share semantic or phonological sequence features. However, the within-treatment group results in the maintenance phase add to evidence from prior studies that Phonomotor Treatment is more likely to facilitate generalisation. Although generalisation to untrained stimuli was minimally maintained after SFA treatment, there was further improvement to untrained exemplars over time following Phonomotor Treatment.en_ZA
dc.description.departmentSpeech-Language Pathology and Audiologyen_ZA
dc.description.librarianhj2020en_ZA
dc.description.sponsorshipVA RR&D Merit Review Grant #C6572Ren_ZA
dc.description.urihttps://www.tandfonline.com/loi/paph20en_ZA
dc.identifier.citationWeisong V. Lai, J. P. Silkes, I. Minkina & D. L. Kendall (2019) Generalisation and maintenance across word classes: comparing the efficacy of two anomia treatments in improving verb naming, Aphasiology, 33:7, 803-820, DOI: 10.1080/02687038.2019.1587376.en_ZA
dc.identifier.issn0268-7038 (print)
dc.identifier.issn1464-5041 (online)
dc.identifier.other10.1080/02687038.2019.1587376
dc.identifier.urihttp://hdl.handle.net/2263/74365
dc.language.isoenen_ZA
dc.publisherRoutledgeen_ZA
dc.rights© 2019 Informa UK Limited, trading as Taylor & Francis Group. This is an electronic version of an article published in Aphasiology, 33:7, 803-820, DOI: 10.1080/02687038.2019.1587376. Aphasiology is available online at : https://www.tandfonline.com/loi/paph20.en_ZA
dc.subjectAphasiaen_ZA
dc.subjectAnomia treatmentsen_ZA
dc.subjectGeneralisationen_ZA
dc.subjectVerbsen_ZA
dc.subjectSemantic feature analysis (SFA)en_ZA
dc.subjectPhonomotor treatment (PMT)en_ZA
dc.titleGeneralisation and maintenance across word classes : comparing the efficacy of two anomia treatments in improving verb namingen_ZA
dc.typePostprint Articleen_ZA

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