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Using semantic feature analysis to improve contextual discourse in adults with aphasia
Jill Davis Rider1, Heather Harris Wright, Robert C Marshall
1Universityof Kentucky, Lexington, USA.
American Journal of Speech-Language Pathology
|May 2, 2008
Summary
Semantic feature analysis (SFA) training improved naming for individuals with nonfluent aphasia. However, improvements were limited to trained words and did not enhance overall discourse lexical diversity.
Area of Science:
- Neurolinguistics
- Speech-Language Pathology
Background:
- Nonfluent aphasia often impairs word retrieval and discourse production.
- Semantic feature analysis (SFA) is a therapeutic technique targeting word knowledge.
Purpose of the Study:
- To investigate if training contextually related words using SFA improves discourse in individuals with nonfluent aphasia.
- To assess the impact of SFA on naming ability and word production within specific contexts.
Main Methods:
- A modified multiple-probes-across-behaviors design was employed.
- Three adults with nonfluent aphasia participated in the study.
- Trained words using SFA in contexts of story retellings and procedure explanations.
Main Results:
- Participants demonstrated improved naming accuracy for trained words.
- No generalization of naming improvement to untrained words was observed.
- An increase in the production of target words in discourse was noted, but lexical diversity did not improve.
Conclusions:
- SFA effectively enhances confrontational naming abilities in nonfluent aphasia.
- SFA may support word retrieval in discourse for specific, trained contexts.
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