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Structural priming from production to comprehension in aphasia
1Speech, Language, & Hearing Sciences, Purdue University, West Lafayette, IN.
Aphasiology
|January 19, 2024
Summary
Structural priming effectively improves sentence processing in people with aphasia (PWA) by enhancing syntactic comprehension across production and comprehension modalities. This implicit learning effect is persistent and may offer a valuable intervention strategy for PWA.
Area of Science:
- Neuroscience
- Psycholinguistics
- Clinical Linguistics
Background:
- People with aphasia (PWA) often struggle with sentence production and comprehension due to difficulties mapping messages to syntactic structures.
- Structural priming, which leverages the tendency to repeat sentence structures, aids implicit syntactic learning in healthy adults and is effective for PWA's sentence production and comprehension.
- The cross-modal effects of structural priming (production influencing comprehension) in PWA are not well understood, yet are critical for developing intervention strategies.
Purpose of the Study:
- To investigate if production-to-comprehension cross-modality priming benefits PWA.
- To determine if priming-induced syntactic comprehension changes persist without immediate prime exposure.
- To examine the correlation between individual priming effects and comprehension improvements in PWA.
Main Methods:
- Thirteen PWA and 13 age-matched controls participated in pre-test, priming, and post-test phases.
- A sentence-picture matching task assessed comprehension of sentences with ambiguous prepositional phrases (high vs. low attachment).
- Participants produced low attachment (LA) sentences as primes, followed by comprehension tasks.
Main Results:
- Both PWA and controls demonstrated significant priming effects from the priming block to the pre-test.
- Priming effects were persistent, observed when comparing pre- and post-test picture selections in both groups.
- Individual priming effects correlated with comprehension changes from pre- to post-test in both PWA and controls.
Conclusions:
- Production-to-comprehension structural priming is effective and persistent in PWA, supporting its role in implicit learning.
- Syntactic representations are shared across production and comprehension modalities, indicating production influences comprehension.
- Cross-modal structural priming shows promise as a clinical intervention to enhance sentence processing in PWA.
Keywords:
aphasiacross-modality structural primingimplicit language learningsentence comprehensionsentence productionsyntaxMore Related Videos
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