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The relation between content and structure in language production: an analysis of speech errors in semantic dementia

By Lotte Meteyard and Karalyn Patterson


In order to explore the impact of a degraded semantic system on the structure of language production, we\ud analysed transcripts from autobiographical memory interviews to identify naturally-occurring speech\ud errors by eight patients with semantic dementia (SD) and eight age-matched normal speakers. Relative to controls, patients were significantly more likely to (a) substitute and omit open class words, (b) substitute (but not omit) closed class words, (c) substitute incorrect complex morphological forms and (d) produce semantically and/or syntactically anomalous sentences. Phonological errors were scarce in both groups. The study confirms previous evidence of SD patients’ problems with open class content words\ud which are replaced by higher frequency, less specific terms. It presents the first evidence that SD patients\ud have problems with closed class items and make syntactic as well as semantic speech errors, although these grammatical abnormalities are mostly subtle rather than gross. The results can be explained by the semantic deficit which disrupts the representation of a pre-verbal message, lexical retrieval and the early stages of grammatical encoding

Publisher: Elsevier
Year: 2009
OAI identifier:

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  1. (2008). 02/09-05/09/2008). Autobiographical Memory Profiles in Semantic Dementia. Paper presented at the First Meeting of the Federation of the European Societies of Neuropsychology,
  2. (2001). A Crosslinguistic Investigation of Determiner Production. In
  3. (2003). A duck with four legs: Investigating the structure of conceptual knowledge using picture drawing in semantic dementia.
  4. (2005). A semantic contribution to nonword recall? Evidence for intact phonological processes in semantic dementia. doi
  5. (1986). A spreading activation theory of retrieval in language production.
  6. (1989). A synthesis of some recent work in sentence production. In
  7. (1999). A theory of lexical access in speech production. doi
  8. (1985). A thoery of verb form use in the speech of agrammatic aphasics. doi
  9. (1987). An effect of accessibility of word forms on sentence production.
  10. (2003). Can thematic roles leave traces of their places?
  11. (1985). Conceptual accessibility and syntactic structure in sentence formulation.
  12. (2004). Constrained sentence production in probable Alzheimer’s disease.
  13. (1989). Crosslinguistic studies of aphasia. In
  14. (2008). Generalization and differentiation in semantic memory: Insights from semantic dementia. doi
  15. (1983). Hemisphere differences in the recognition of closed and open class words.
  16. (2000). Insights from semantic dementia on the relationship between episodic and semantic memory. doi
  17. (1985). Is agrammatism a unitary phenomenon? In
  18. (1995). Is semantic memory consistently impaired early in the course of Alzheimer's disease? Neuroanatomical and diagnostic implications. doi
  19. (1994). Language Production: Grammatical Encoding.
  20. (1999). Language Production. In
  21. (2003). Learning to divide the labor: an account of deficits in light and heavy verb production. doi
  22. (1980). Levels of Processing in Sentence Production. In
  23. (1985). Lexical access and frequency sensitivity: Frequency saturation and open/closed class equivalence. doi
  24. (1981). Lexical Search and Order of Mention in Sentence Production.
  25. (2006). Limited interaction in Speech Production. doi
  26. (2005). Making Syntax of Sense: Number Agreement in Sentence Production.
  27. (1986). Meaning, Sound and Syntax: Lexical priming in sentence production.
  28. (1975). Mini-mental state: A practical guide for grading the mental state of patients for the clinician.
  29. (2006). Non-semantic" aspects of language in semantic dementia: As normal as they're said to be?
  30. (2000). Non-verbal semantic impairment in semantic dementia.
  31. (1982). Production of speech: Observations from normal and pathological language use. In
  32. (2007). Semantic dementia: a unique clinicopathological syndrome. doi
  33. (1992). Semantic dementia: Progressive Fluent aphasia with temporal lobe atrophy. doi
  34. (1990). Sentence Processing. doi
  35. (2001). Speech Errors in Alzheimer's Disease: Reevaluating Morphosyntactic Preservation.
  36. (1987). Syntactic Preservation in Alzheimer's Disease.
  37. (1966). The "tip of the tongue" phenomenon.
  38. (1975). The Analysis of Sentence Production. In
  39. (1990). The autobiographical memory interview. doi
  40. (1999). The emergence of grammaticality in connectionist networks.
  41. (2006). The functions of structural priming.
  42. (1998). The gender-congruency effect in pictureword tasks. doi
  43. (1971). The non-anomalous nature of anomalous utterances.
  44. (1984). The organisation of processing structure for language production: applications to aphasic speech. In
  45. (1981). The reliability of speech error data.
  46. (2000). The rise and fall of frequency and imageability: Noun and verb production in semantic dementia.
  47. (2002). The syntax of single words: Evidence from a patient with a selective function word reading deficit.
  48. (1982). Toward a Cognitive Psychology of Syntax: Information Processing Contributions to Sentence Formulation.
  49. (2002). When objects lose their meaning: What happens to their use?

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