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Related Experiment Videos

Favor referential representations

L Frazier1, P McNamara

  • 1Department of Linguistics, University of Massachusetts, USA.

Brain and Language
|June 1, 1995
PubMed
Summary
This summary is machine-generated.

Agrammatic patients struggle with syntactic processing, favoring content-based representations. This leads to errors in grammatical judgments, especially with referential phrases, impacting language comprehension in individuals with agrammatism.

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Area of Science:

  • Linguistics
  • Neurolinguistics
  • Psycholinguistics

Background:

  • Agrammatic aphasia is characterized by difficulties in producing and comprehending grammatically complex sentences.
  • Previous research suggests agrammatic patients can process nonreferential syntactic chains but struggle with referential ones.

Purpose of the Study:

  • To test the "referential representation hypothesis" which posits that agrammatic patients prioritize content-based representations due to capacity limitations.
  • To investigate how referential versus nonreferential phrases affect syntactic performance in agrammatic individuals.

Main Methods:

  • A grammaticality judgment study was conducted with agrammatic patients.
  • Participants judged the acceptability of sentences containing referential and nonreferential wh-phrases, including resumptive pronoun and gap sentences.

Related Experiment Videos

  • Task demands and pragmatic biases were manipulated.

    • Main Results:

    • Agrammatic patients performed better on sentences with pragmatic biases.
    • Performance degraded when pragmatic biases were neutralized, indicating difficulty with purely syntactic information.
    • Patients incorrectly accepted sentences with resumptive pronouns linked to referential wh-phrases.
    • They rated object gap sentences with referential wh-constituents particularly low.
    • Acceptance of ungrammatical reflexive sentences was observed, attributed to reliance on semantic over syntactic cues.

    Conclusions:

    • The findings support the "referential representation hypothesis," suggesting agrammatic patients rely on content-based representations to compensate for processing limitations.
    • This reliance interferes with the development and use of purely syntactic representations.
    • Grammaticality judgments in agrammatism are influenced by the interplay between referential content and syntactic structure.