Non literal language comprehension in a large sample of first episode psychosis patients in adulthood

Cinzia Perlini, Marcella Bellani, Livio Finos, Antonio Lasalvia, Chiara Bonetto, Paolo Scocco, Armando D'Agostino, Stefano Torresani, Massimiliano Imbesi, Francesca Bellini, Angela Konze, Angela Veronese, Mirella Ruggeri, Paolo Brambilla, the GET UP Group

Research output: Contribution to journalArticle

Abstract

To date no data still exist on the comprehension of figurative language in the early phases of psychosis. The aim of this study is to investigate for the first time the comprehension of metaphors and idioms at the onset of the illness. Two-hundred-twenty eight (228) first episode psychosis (FEP) patients (168 NAP, non-affective psychosis; 60 AP, affective psychosis) and 70 healthy controls (HC) were assessed. Groups were contrasted on: a) type of stimulus (metaphors vs idioms) and b) type of response (OPEN = spontaneous explanations vs CLOSED = multiple choice answer). Moreover, a machine learning (ML) approach was adopted to classifying participants. Both NAP and AP had a poorer performance on OPEN metaphors and idioms compared to HC, with worse results on spontaneous interpretation of idioms than metaphors. No differences were observed between NAP and AP in CLOSED tasks. The ML approach points at CLOSED idioms as the best discriminating variable, more relevant than the set of pre-frontal and IQ scores. Deficits in non-figurative language may represent a core feature of psychosis. The possibility to identify linguistic features discriminating FEP may support the early recognition of patients at risk to develop psychosis, guiding provision of personalized and timely interventions.

Original languageEnglish
Pages (from-to)78-89
Number of pages12
JournalPsychiatry Research
Volume260
DOIs
Publication statusPublished - Feb 1 2018

    Fingerprint

Keywords

  • Cognitive functioning
  • Figurative language
  • First episode
  • Idiom
  • Metaphor
  • Psychoses

ASJC Scopus subject areas

  • Psychiatry and Mental health
  • Biological Psychiatry

Cite this

Perlini, C., Bellani, M., Finos, L., Lasalvia, A., Bonetto, C., Scocco, P., D'Agostino, A., Torresani, S., Imbesi, M., Bellini, F., Konze, A., Veronese, A., Ruggeri, M., Brambilla, P., & the GET UP Group (2018). Non literal language comprehension in a large sample of first episode psychosis patients in adulthood. Psychiatry Research, 260, 78-89. https://doi.org/10.1016/j.psychres.2017.11.032