The Influence of Trial-By-Trial Feedback on Trust in Health, First-Episode and Chronic Psychosis

Imke L. J. Lemmers-Jansen (), Rune J. Wichmann, Sophie Perizonius and Sukhi S. Shergill
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Imke L. J. Lemmers-Jansen: Institute of Psychiatry, Psychology and Neuroscience, King’s College London, de Crespigny Park, London SE5 8AF, UK
Rune J. Wichmann: Institute of Psychiatry, Psychology and Neuroscience, King’s College London, de Crespigny Park, London SE5 8AF, UK
Sophie Perizonius: Department of Clinical, Neuro and Developmental Psychology, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, 1081 BT Amsterdam, The Netherlands
Sukhi S. Shergill: Institute of Psychiatry, Psychology and Neuroscience, King’s College London, de Crespigny Park, London SE5 8AF, UK

Games, 2022, vol. 13, issue 5, 1-14

Abstract: Trust is crucial to establishing reciprocal, positive social interactions and seems to be compromised in psychosis. The trust game offers methods to assess an individual’s trust responses to trust-reciprocating, positive feedback. Various computational techniques have been implemented to measure trust responsiveness, mostly based on investments. Here, we propose a new method, focusing on feedback response. Psychosis patients show social dysfunction and reduced trust during early and more progressed illness stages. The present study inspects differences in feedback responsiveness of 102 first-episode psychosis patients (FEPs), 43 chronic psychosis patients (CPs), and 39 healthy controls (HCs) by adopting a novel assessment approach. Additionally, baseline trust, the trust exerted without any prior knowledge of the partner’s trustworthiness, and mean trust were examined. Participants performed a multi-round trust game, playing the investor role, and were paired with a computer, programmed to return at least the invested amount, representing a trustworthy partner. The new method detected group differences, more distinguished than the former methods. Contrary to our expectations, baseline trust was intact in patients. Relative to HCs, patients were less responsive to feedback, failing to integrate the positive information into their decision-making process. The magnitude of returns was not associated with increases in trust. This novel method showed promising results and confirmed patients’ deficits within the social interactional domain.

Keywords: trust game; novel technique; feedback responsiveness; chronic psychosis; first-episode psychosis; reward magnitude; baseline trust; psychotic symptoms (search for similar items in EconPapers)
JEL-codes: C C7 C70 C71 C72 C73 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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