N400 Peculiarities During Intentional Inferences Production in Subjects With Schizotypal Traits - CY Cergy Paris Université Access content directly
Journal Articles Journal of Psychophysiology Year : 2022

N400 Peculiarities During Intentional Inferences Production in Subjects With Schizotypal Traits

Anne-Lise Bohec
  • Function : Author
Claire de Loye
  • Function : Author
Matias Baltazar
  • Function : Author
Alain Blanchet
  • Function : Author
Romain Rey
  • Function : Author
Milena Kostova

Abstract

Abstract. A deficit in context processing may underlie theory of mind (ToM) difficulties in schizophrenia, although few studies to date have explored the impact of contextual processing on ToM performances within the same task. We used electroencephalography to investigate the production of intentional inferences from highly versus weakly structured sentences in healthy participants with schizotypal traits. Thirty-four participants were divided into two groups according to their scores on the Schizotypal Personality Questionnaire (SPQ). The participants listened to stories that required a degree of understanding in order to produce an inference about the main character’s intention. Each story was followed by a target word that could either be highly predictable (HP), weakly predictable (WP), or incompatible with the context. The results indicate that the N400 component for WP targets was stronger in the high-SPQ group. This increase correlated with the negative dimension of schizotypy. This may reflect difficulties with generating intentional inferences when the context is insufficiently structured for high schizotypy participants.
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Dates and versions

hal-04030572 , version 1 (15-03-2023)

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Anne-Lise Bohec, Claire de Loye, Matias Baltazar, Alain Blanchet, Romain Rey, et al.. N400 Peculiarities During Intentional Inferences Production in Subjects With Schizotypal Traits. Journal of Psychophysiology, 2022, 36 (3), pp.177-187. ⟨10.1027/0269-8803/a000292⟩. ⟨hal-04030572⟩
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