Influence of cognitive ability on therapy outcomes for anomia in adults with chronic poststroke aphasia

Dignam, Jade, Copland, David, O'Brien, Kate, Burfein, Penni, Khan, Asaduzzaman and Rodriguez, Amy D. (2017) Influence of cognitive ability on therapy outcomes for anomia in adults with chronic poststroke aphasia. Journal of Speech, Language, and Hearing Research, 60 2: 406-421. doi:10.1044/2016_JSLHR-L-15-0384

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Author Dignam, Jade
Copland, David
O'Brien, Kate
Burfein, Penni
Khan, Asaduzzaman
Rodriguez, Amy D.
Title Influence of cognitive ability on therapy outcomes for anomia in adults with chronic poststroke aphasia
Journal name Journal of Speech, Language, and Hearing Research   Check publisher's open access policy
ISSN 1092-4388
1558-9102
Publication date 2017-02-01
Year available 2017
Sub-type Article (original research)
DOI 10.1044/2016_JSLHR-L-15-0384
Open Access Status File (Author Post-print)
Volume 60
Issue 2
Start page 406
End page 421
Total pages 16
Place of publication Rockville, MD, United States
Publisher American Speech - Language - Hearing Association
Language eng
Abstract Purpose: The relationship between cognitive abilities and aphasia rehabilitation outcomes is complex and remains poorly understood. This study investigated the influence of language and cognitive abilities on anomia therapy outcomes in adults with aphasia.
Formatted abstract
Purpose: The relationship between cognitive abilities and aphasia rehabilitation outcomes is complex and remains poorly understood. This study investigated the influence of language and cognitive abilities on anomia therapy outcomes in adults with aphasia.  

Method: Thirty-four adults with chronic aphasia participated in Aphasia Language Impairment and Functioning Therapy. A language and cognitive assessment battery, including 3 baseline naming probes, was administered prior to therapy. Naming accuracy for 30 treated and 30 untreated items was collected at posttherapy and 1-month follow-up. Multiple regression models were computed to evaluate the relationship between language and cognitive abilities at baseline and anomia therapy outcomes.

Results: Both language and cognitive variables significantly influenced anomia therapy gains. Verbal short-term memory ability significantly predicted naming gains for treated items at posttherapy (β = −.551, p =.002) and for untreated items at posttherapy (β =.456, p =.014) and 1-month follow-up (β =.455, p =.021). Furthermore, lexical-semantic processing significantly predicted naming gains for treated items at posttherapy (β = −.496, p =.004) and 1-month follow-up (β =.545, p =.012).

Conclusions: Our findings suggest that individuals’ cognitive ability, specifically verbal short-term memory, affects anomia treatment success. Further research into the relationship between cognitive ability and anomia therapy outcomes may help to optimize treatment techniques.
Keyword Audiology & Speech-Language Pathology
Linguistics
Rehabilitation
Audiology & Speech-Language Pathology
Linguistics
Rehabilitation
Q-Index Code C1
Q-Index Status Provisional Code
Grant ID 569935
Institutional Status UQ

 
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