Further evidence for "hyper-priming" in thought-disordered schizophrenic patients using repeated masked category priming

Dirk Wentura*, Steffen Moritz, Christian Frings

*Corresponding author for this work

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Background: Previous research has yielded evidence for enhanced semantic priming in formal thought-disordered schizophrenia patients, a result that fits well with the hypothesis of disinhibited processes of spreading activation in this population. Methods: The present study tested this hypothesis by using masked repetition priming, which yields reversed semantic priming effects in healthy participants. Assuming that performance in this paradigm relies on a balance between activation and inhibition processes in healthy participants, we compared formal thought-disordered schizophrenia patients, non-thought disordered schizophrenia patients, and healthy controls. Results: For thought-disordered schizophrenia patients, we found a large positive semantic priming effect for dominant category exemplars (primed by the category name), whereas healthy controls had a small negative effect. For non-thought disordered patients, we found a non-significant, numerically positive effect. Conclusions: This result yields further evidence for the lack of inhibitory processes in thought-disordered patients.

Original languageEnglish
Pages (from-to)69-75
Number of pages7
JournalSchizophrenia Research
Volume102
Issue number1-3
DOIs
Publication statusPublished - Jul 2008
Externally publishedYes

Keywords

  • Schizophrenia
  • Semantic priming
  • Thought disorder

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