The cat in the tree–using picture descriptions to inform our understanding of conceptualisation in aphasia

Inga Hameister*, Lyndsey Nickels

*Corresponding author for this work

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Conceptualisation is the first step of speech production and describes the process by which we map our thoughts onto spoken language. Recent studies suggest that some people with language impairments have conceptualisation deficits manifested by information selection and sequencing difficulties. In this study, we examined conceptualisation in the complex picture descriptions of individuals with and without aphasia. We analysed the number and the order of main concepts (ideas produced by ≥60% of unimpaired speakers) and non-main concepts (e.g. irrelevant details). Half of the individuals with aphasia showed a reduced number of main concepts that could not be fully accounted for by their language production deficits. Moreover, individuals with aphasia produced both a larger amount of marginally relevant information, as well as having greater variability in the order of main concepts. Both findings provide support for the idea that conceptualisation deficits are a relatively common impairment in people with aphasia.

Original languageEnglish
Pages (from-to)1296-1314
Number of pages19
JournalLanguage, Cognition and Neuroscience
Volume33
Issue number10
DOIs
Publication statusPublished - 26 Nov 2018

Keywords

  • aphasia
  • conceptualisation
  • discourse
  • concept analysis
  • macroplanning

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