Effect of lexical cues on the production of active and passive sentences in Broca's and Wernicke's aphasia

Yasmeen Faroqi-Shah*, Cynthia K. Thompson

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

42 Scopus citations


This study compared the sentence production abilities of individuals with Broca's and Wernicke's aphasia in an attempt to explore the extent to which impaired lexical retrieval impedes sentence production. The ability to produce active and passive reversible and non-reversible sentences was examined when varying amounts of lexical information was provided. The results showed that both Wernicke's and Broca's aphasic individuals were impaired in passive sentence production and that these difficulties were not overcome when lexical cues (the relevant nouns and uninflected verb) were provided. However when auxiliary and past tense morphemes were provided along with the verb stem, production of passive sentences improved drastically for both groups. Analysis of error patterns, however, revealed differences between the two groups, suggesting that Broca's aphasic subjects may find passive sentences difficult due to problems with retrieving the relevant grammatical morphemes. Subjects with Wernicke's aphasia may have been unable to automatically access the passive sentence structure.

Original languageEnglish (US)
Pages (from-to)409-426
Number of pages18
JournalBrain and Language
Issue number3
StatePublished - Jun 2003


  • Broca's aphasia
  • Language production models
  • Lexical impairment
  • Morphology
  • Sentence production
  • Wernicke's aphasia

ASJC Scopus subject areas

  • Experimental and Cognitive Psychology
  • Language and Linguistics
  • Linguistics and Language
  • Cognitive Neuroscience
  • Speech and Hearing


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