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Implicit structural priming as a treatment component for aphasia: Specifying essential learning conditions
Jiyeon Lee1, Willem S van Boxtel1, Joshua D Weirick1
1Department of Speech, Language, and Hearing Sciences, Purdue University, West Lafayette, IN, USA.
Cognitive Neuropsychology
|April 3, 2025
Summary
Implicit structural priming effectively improves sentence production in persons with aphasia (PWA). Single structure training enhanced grammatical encoding more than alternating structures for PWA.
Area of Science:
- Neurolinguistics
- Cognitive Psychology
- Speech-Language Pathology
Background:
- Aphasia, a language disorder post-brain damage, impairs sentence production.
- Implicit structural priming is explored as a novel therapeutic approach.
- Understanding learning mechanisms is crucial for aphasia recovery.
Purpose of the Study:
- To investigate implicit structural priming as a treatment for sentence production deficits in persons with aphasia (PWA).
- To compare the effectiveness of alternating versus single structure prime training conditions.
- To elucidate the learning mechanisms (error-based vs. activation-based) underlying recovery in PWA.
Main Methods:
- 16 persons with aphasia (PWA) and 16 controls participated.
- Baseline, training (3 sessions), and post-testing (1-day, 1-week) were conducted.
- Participants received both alternating and single structure prime training.
Main Results:
- Both PWA and controls showed significant improvements in trained and untrained sentence production.
- Persons with aphasia (PWA) demonstrated greater gains with single structure priming.
- Controls exhibited more improvement with alternating structure priming.
Conclusions:
- Implicit structural priming is an effective intervention for improving sentence production in aphasia.
- Increased base-level activation of syntactic structures aids grammatical encoding in PWA.
- Single structure priming may be more beneficial for PWA than alternating structures.
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