Document Detail

The crucial role of tense for verb production.
MedLine Citation:
PMID:  15896379     Owner:  NLM     Status:  MEDLINE    
The case of an aphasic patient whose spontaneous speech contains very few lexical verbs is reported. Instead of sentences with lexical verbs, the patient produces many (grammatical) copular constructions. He also substitutes lexical verbs with the copula. Although this results in ungrammatical utterances, by doing so, a resemblance of sentence structure and a degree of grammaticality of his utterances are preserved. Although the patient is more impaired in naming action than object pictures, it is unlikely that lexical retrieval difficulties are solely responsible for the paucity of lexical verbs in his speech. A series of tests revealed a profound deficit in producing tense marking inflections and in understanding their significance. We argue that the unavailability of tense features is the primary reason for the lack of lexical verbs in his speech. An alternative possibility, that the tense deficit interacts with the verb retrieval deficit, is also discussed. The patient has a complex lesion and language profile, with features associated with both Broca's and Wernicke's aphasia. However, since the study focuses on his verb and tense deficits and the grammaticality of his utterances, issues that are often discussed in relation to agrammatic Broca's aphasia, the literature that is relevant to these topics and to Broca's aphasia is reviewed, despite the different diagnostic profile of the patient.
Judit Druks; Erin Carroll
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Publication Detail:
Type:  Case Reports; Journal Article     Date:  2005-01-11
Journal Detail:
Title:  Brain and language     Volume:  94     ISSN:  0093-934X     ISO Abbreviation:  Brain Lang     Publication Date:  2005 Jul 
Date Detail:
Created Date:  2005-05-17     Completed Date:  2005-08-31     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7506220     Medline TA:  Brain Lang     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1-18     Citation Subset:  IM    
Department of Human Communication Science, University College London, England, UK.
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MeSH Terms
Aphasia, Broca / pathology,  physiopathology*
Aphasia, Wernicke / pathology,  physiopathology*
Frontal Lobe / pathology
Magnetic Resonance Imaging
Middle Aged
Parietal Lobe / pathology
Severity of Illness Index
Temporal Lobe / pathology

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