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

Oleh:

Faroqi-Shah, Yasmeen ; Thompson, Cynthia K.

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Brain and Language (Full Text) vol. 85 no. 3 (2003), page 409-426.
Topik: Sentence production; Lexical impairment; Morphology; Language production models; Broca's aphasia; Wernicke's aphasia
Fulltext: 85_03_Faroqi-Shah.pdf (383.47KB)

Isi artikel

This studycompared 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 abilityto 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 auxiliaryand past tense morphemes were provided along with the verb stem, production of passive sentences improved drasticallyfor both groups. Analysis of error patterns, however, revealed differences between the two groups, suggesting that Broca's aphasic subjects mayfind passive sentences difficult due to problems with retrieving the relevant grammatical morphemes. Subjects with Wernicke's aphasia mayhave been unable to automaticallyaccess the passive sentence structure.

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