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Related Experiment Videos

Verb finding in aphasia.

S E Kohn1, M P Lorch, D M Pearson

  • 1Neurolinguistics Laboratory, Massachusetts General Hospital.

Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
|March 1, 1989
PubMed
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This study investigated word-finding difficulties in aphasia patients by comparing noun and verb generation. Aphasic subjects showed similar patterns to controls, with some exceptions indicating sentence planning issues.

Area of Science:

  • Neurolinguistics
  • Psycholinguistics
  • Speech and Language Pathology

Background:

  • Aphasia, a language disorder resulting from brain damage, often impairs word retrieval.
  • Understanding word-finding difficulties in aphasia is crucial for effective diagnosis and rehabilitation.
  • Previous research highlights challenges in accessing both lexical items (nouns, verbs) and grammatical structures.

Purpose of the Study:

  • To compare word-finding abilities for nouns and verbs in individuals with aphasia.
  • To investigate sentence generation patterns as an indicator of word-finding difficulty.
  • To explore potential links between specific word-finding deficits and types of aphasia.

Main Methods:

  • Assessed word-finding in 9 aphasic participants and 9 age-matched controls.

Related Experiment Videos

  • Compared performance on synonym generation for 20 nouns and 20 verbs.
  • Analyzed sentence generation, focusing on the frequency of 'empty' nouns and verbs as a measure of word-finding difficulty.

    • Main Results:

    • Aphasic and control groups showed similar patterns in synonym generation, with some individuals producing fewer verb synonyms.
    • Sentence generation revealed comparable patterns, with some participants using more 'empty' verbs.
    • One participant with transcortical motor aphasia exhibited unique avoidance of 'empty' verbs, leading to incomplete sentences.

    Conclusions:

    • Word-finding deficits in aphasia can manifest similarly to controls, but with distinct patterns.
    • The avoidance of 'empty' verbs in sentence generation may indicate a breakdown in early sentence planning stages.
    • This specific pattern suggests a potential diagnostic marker for transcortical motor aphasia.