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Vocabulary grammatical structure in aphasic patients.

L Mihăilescu1

  • 1Institute of Neurology and Psychiatry, Bucharest, Romania.

Romanian Journal of Neurology and Psychiatry = Revue Roumaine De Neurologie Et Psychiatrie
|January 1, 1992
PubMed
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Aphasic patients exhibit reduced vocabulary, primarily losing nouns, verbs, and adjectives. Their verbal creativity is lower, though both aphasics and controls use more non-basic words creatively.

Area of Science:

  • Linguistics
  • Neurology
  • Psycholinguistics

Background:

  • Aphasia, a language disorder resulting from brain damage, affects vocabulary and word usage.
  • Understanding grammatical class alterations in aphasia is crucial for language recovery insights.

Purpose of the Study:

  • To analyze grammatical class distribution and verbal creativity in Romanian aphasic patients.
  • To compare word usage patterns between aphasics and healthy controls.

Main Methods:

  • A corpus of 2,500 words was collected from 10 aphasics (vascular etiology) and 10 controls via interviews.
  • Analysis focused on the 10 grammatical classes of the Romanian language.
  • Verbal creativity was assessed using the Token-Type ratio.

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Main Results:

  • Aphasics showed vocabulary reduction, losing nouns, adjectives, and verbs, while proportionally increasing adverbs, pronouns, and numerals.
  • Basic words were preserved across parts of speech; losses occurred in non-basic vocabulary.
  • Aphasics demonstrated lower verbal creativity (Token-Type ratio) compared to controls.

Conclusions:

  • Vocabulary loss in aphasia affects specific word types, altering grammatical class proportions.
  • Verbal creativity is diminished in aphasia, with both groups favoring non-basic word creativity.
  • Linguistic factors like semantic constraints and word class frequency influence word selection in aphasia.