Understanding the mechanisms underlying cognitive control in psychosis

R Maitra*, I L J Lemmers-Jansen, M Vooren, Lucy Vanes, Timea Szentgyorgyi, Charlotte Crisp, Elias Mouchlianitis, S S Shergill

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

Abstract

BACKGROUND: Cognitive control (CC) involves a top-down mechanism to flexibly respond to complex stimuli and is impaired in schizophrenia.

METHODS: This study investigated the impact of increasing complexity of CC processing in 140 subjects with psychosis and 39 healthy adults, with assessments of behavioral performance, neural regions of interest and symptom severity.

RESULTS: The lowest level of CC (Stroop task) was impaired in all patients; the intermediate level of CC (Faces task) with explicit emotional information was most impaired in patients with first episode psychosis. Patients showed activation of distinct neural CC and reward networks, but iterative learning based on the higher-order of CC during the trust game, was most impaired in chronic schizophrenia. Subjects with first episode psychosis, and patients with lower symptom load, demonstrate flexibility of the CC network to facilitate learning, which appeared compromised in the more chronic stages of schizophrenia.

CONCLUSION: These data suggest optimal windows for opportunities to introduce therapeutic interventions to improve CC.

Original languageEnglish
Pages (from-to)1-10
Number of pages10
JournalPsychological Medicine
Early online date23 May 2024
DOIs
Publication statusE-pub ahead of print - 23 May 2024

Bibliographical note

Publisher Copyright:
Copyright © The Author(s), 2024. Published by Cambridge University Press.

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