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Grammatism.

S Crain1, W Ni, D Shankweiler

  • 1University of Maryland at College Park, 20742, USA.

Brain and Language
|June 2, 2001
PubMed
Summary
This summary is machine-generated.

Agrammatism in aphasia may stem from linguistic structure deficits or processing limitations. This study suggests processing limitations better explain difficulties with restrictive relative clauses in agrammatic aphasics.

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Area of Science:

  • Psycholinguistics
  • Neurolinguistics
  • Developmental Psychology

Background:

  • Agrammatism, a symptom of aphasia, presents a complex challenge in understanding language deficits.
  • Two primary models explain agrammatism: a linguistic structure deficit model and a language processing limitation model.

Purpose of the Study:

  • To compare the linguistic structure deficit model and the language processing limitation model of agrammatism.
  • To investigate the comprehension of restrictive relative clauses in individuals with agrammatism.

Main Methods:

  • Literature review on language development, dyslexia, and adult sentence processing.
  • Experimental investigations focusing on the processing of restrictive relative clauses across various subject populations.

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Main Results:

  • Parallel patterns of linguistic behavior were observed across different subject groups when processing restrictive relative clauses.
  • Findings indicated that agrammatic aphasics exhibit specific difficulties with comprehending sentences containing restrictive relative clauses.

Conclusions:

  • The results support the processing limitation account over the linguistic structure deficit model for agrammatism.
  • This suggests that limitations in language processing underlie the difficulties experienced by agrammatic individuals with complex sentence structures.