Metacognitive deficits in categorization tasks in a population with impaired inner speech

Peter Langland-Hassan, Christopher Gauker, Michael J. Richardson, Aimee Dietz, Frank Faries

Research output: Contribution to journalArticleResearchpeer-review

Abstract

This study examines the relation of language use to a person's ability to perform categorization tasks and to assess their own abilities in those categorization tasks. A silent rhyming task was used to confirm that a group of people with post-stroke aphasia (PWA) had corresponding covert language production (or “inner speech”) impairments. The performance of the PWA was then compared to that of age- and education-matched healthy controls on three kinds of categorization tasks and on metacognitive self-assessments of their performance on those tasks. The PWA showed no deficits in their ability to categorize objects for any of the three trial types (visual, thematic, and categorial). However, on the categorial trials, their metacognitive assessments of whether they had categorized correctly were less reliable than those of the control group. The categorial trials were distinguished from the others by the fact that the categorization could not be based on some immediately perceptible feature or on the objects' being found together in a type of scenario or setting. This result offers preliminary evidence for a link between covert language use and a specific form of metacognition.
LanguageEnglish
Pages62-74
Number of pages13
JournalActa Psychologica
Volume181
DOIs
Publication statusPublished - Nov 2017

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Aptitude
Language
Population
Aphasia
Stroke
Education
Control Groups
Inner Speech
Language Use

Keywords

  • inner speech
  • metacognition
  • aphasia
  • language
  • categorization
  • concepts

Cite this

Langland-Hassan, Peter ; Gauker, Christopher ; Richardson, Michael J. ; Dietz, Aimee ; Faries, Frank. / Metacognitive deficits in categorization tasks in a population with impaired inner speech. In: Acta Psychologica. 2017 ; Vol. 181. pp. 62-74.
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Metacognitive deficits in categorization tasks in a population with impaired inner speech. / Langland-Hassan, Peter; Gauker, Christopher; Richardson, Michael J.; Dietz, Aimee; Faries, Frank.

In: Acta Psychologica, Vol. 181, 11.2017, p. 62-74.

Research output: Contribution to journalArticleResearchpeer-review

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