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American Journal of Speech-Language Pathology Vol.17 161-172 May 2008. doi:10.1044/1058-0360(2008/016)
© American Speech-Language-Hearing Association
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Research

Using Semantic Feature Analysis to Improve Contextual Discourse in Adults With Aphasia

Jill Davis Rider
University of Kentucky, Lexington

Heather Harris Wright
Arizona State University, Tempe

Robert C. Marshall
Judith L. Page
University of Kentucky, Lexington

Contact author: Heather Harris Wright, Department of Speech and Hearing Science, Arizona State University, P.O. Box 870102, Tempe, AZ 85287-0102. E-mail: heather.wright.1{at}asu.edu.

Purpose: Semantic feature analysis (SFA) was used to determine whether training contextually related words would improve the discourse of individuals with nonfluent aphasia in preselected contexts.

Method: A modified multiple-probes-across-behaviors design was used to train target words using SFA in 3 adults with nonfluent aphasia. Pretreatment, posttreatment, and follow-up sessions obtained language samples for the preselected contexts. Contexts included 4 story retellings and 4 procedure explanations.

Results: All participants improved naming ability for treated words. No generalization to untrained items was found. Within discourse samples, participants increased number of target words produced from pretreatment to posttreatment sessions but did not increase lexical diversity across samples. Participants maintained performance on standardized measures from the beginning to the end of the study.

Conclusions: Results support and extend previous research by indicating that SFA improves confrontational naming ability and may benefit word retrieval in discourse production of closed-set contexts.

Key Words: aphasia, word retrieval, treatment, discourse






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