The effects of verb retrieval therapy for people with non-fluent aphasia : evidence from assessment tasks and conversation

CARRAGHER, M., SAGE, Karen and CONROY, P. (2013). The effects of verb retrieval therapy for people with non-fluent aphasia : evidence from assessment tasks and conversation. Neuropsychological Rehabilitation, 23 (6), 846-887.

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Despite often impressive improvements on linguistic assessments, there is a lack of evidence of significant generalisation from impairment-focused aphasia therapy to everyday communication. The aim of the current study was to investigate the effect of a verb retrieval therapy across a range of levels of language production. Nine participants with chronic non-fluent stroke aphasia were recruited into this case series. Baseline assessment included naming a range of verbs (i.e., action verbs, semantically light verbs and personally relevant verbs) and sentence production. Multiple samples of conversation were collected from each participant and his/her partner. Consecutively failed verbs were divided across treatment and control sets; these sets were matched for salient psycholinguistic variables such as frequency, imageability and argument structure. A multi-component verb retrieval therapy was delivered, consisting of semantic feature analysis, gesture production and phonemic cueing. Following therapy, participants demonstrated significant and sustained gains in naming treated verbs; more modest effects were seen in untreated verbs. Mixed patterns of generalisation were evident in assessment of sentence production. In conversation, while group analysis suggested a lack of change, individual analyses indicated increased verb retrieval for three participants and qualitative changes related to the syntactic contexts of verbs retrieved.

Item Type: Article
Research Institute, Centre or Group - Does NOT include content added after October 2018: Centre for Health and Social Care Research
Identification Number:
Page Range: 846-887
Depositing User: Karen Sage
Date Deposited: 25 Feb 2016 13:56
Last Modified: 18 Mar 2021 18:16

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