A Transdiagnostic Study of Effort-Cost Decision-Making in Psychotic and Mood Disorders.

Autor:	Culbreth AJ; Department of Psychiatry, Maryland Psychiatric Research Center, University of Maryland, School of Medicine, Baltimore, USA., Moran EK; Department of Psychological and Brain Sciences, Washington University in St. Louis, Saint Louis, USA., Mahaphanit W; Department of Psychological and Brain Sciences, Dartmouth College, Hanover, USA., Erickson MA; Department of Psychiatry and Behavioral Neuroscience, University of Chicago, Chicago, USA., Boudewyn MA; Department of Psychology, University of California, Santa Cruz, USA., Frank MJ; Department of Cognitive, Linguistics, and Psychological Sciences, Brown University, Providence, USA., Barch DM; Department of Psychological and Brain Sciences, Washington University in St. Louis, Saint Louis, USA.; Department of Psychiatry, Washington University School of Medicine, St Louis, USA.; Department of Radiology, Mallinckrodt Institute of Radiology, Washington University School of Medicine, St Louis, USA., MacDonald AW 3rd; Department of Psychology, University of Minnesota, Minneapolis, USA., Ragland JD; Department of Psychiatry, University of California, Davis, School of Medicine, Davis, USA., Luck SJ; Center for Mind and Brain, University of California, Davis, Davis, USA., Silverstein SM; Department of Psychiatry, University of Rochester Medical Center, Rochester, USA., Carter CS; Department of Psychiatry, University of California, Davis, School of Medicine, Davis, USA., Gold JM; Department of Psychiatry, Maryland Psychiatric Research Center, University of Maryland, School of Medicine, Baltimore, USA.
Jazyk:	angličtina
Zdroj:	Schizophrenia bulletin [Schizophr Bull] 2024 Mar 07; Vol. 50 (2), pp. 339-348.
DOI:	10.1093/schbul/sbad155
Abstrakt:	Background: Research suggests that effort-cost decision-making (ECDM), the estimation of work required to obtain reward, may be a relevant framework for understanding motivational impairment in psychotic and mood pathology. Specifically, research has suggested that people with psychotic and mood pathology experience effort as more costly than controls, and thus pursue effortful goals less frequently. This study examined ECDM across psychotic and mood pathology. Hypothesis: We hypothesized that patient groups would show reduced willingness to expend effort compared to controls. Study Design: People with schizophrenia (N = 33), schizoaffective disorder (N = 28), bipolar disorder (N = 39), major depressive disorder (N = 40), and controls (N = 70) completed a physical ECDM task. Participants decided between completing a low-effort or high-effort option for small or larger rewards, respectively. Reward magnitude, reward probability, and effort magnitude varied trial-by-trial. Data were analyzed using standard and hierarchical logistic regression analyses to assess the subject-specific contribution of various factors to choice. Negative symptoms were measured with a clinician-rated interview. Study Results: There was a significant effect of group, driven by reduced choice of high-effort options in schizophrenia. Hierarchical logistic regression revealed that reduced choice of high-effort options in schizophrenia was driven by weaker contributions of probability information. Use of reward information was inversely associated with motivational impairment in schizophrenia. Surprisingly, individuals with major depressive disorder and bipolar disorder did not differ from controls. Conclusions: Our results provide support for ECDM deficits in schizophrenia. Additionally, differences between groups in ECDM suggest a seemingly similar behavioral phenotype, reduced motivation, could arise from disparate mechanisms. (© The Author(s) 2023. Published by Oxford University Press on behalf of the Maryland Psychiatric Research Center. All rights reserved. For permissions, please email: journals.permissions@oup.com.)
Databáze:	MEDLINE
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