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Examination of social decision making in patients with schizophrenia using ultimatum game.
Asian J Psychiatr. 2020 Apr; 50:101937.AJ

Abstract

Intact decision-making skills in the social context are essential for optimal functioning in the community. Despite its significance, social decision making in schizophrenia (SCZ) has not been adequately examined. Hence, we examined social decision making in SCZ using the Ultimatum Game(UG), a neuroeconomic paradigm that involves financial transactions between a proposer and a responder to split a sum of money between them. Thirty male patients with a diagnosis of schizophrenia as per DSM-IV (age = 30 ± 7.08) and thirty age-matched healthy male volunteers (HV;age = 28.48 ± 3.74) participated in the study. All participants functioned as responders and had to either accept or reject offers made by an anonymous proposer. We also examined whether the gender or emotional expression of the proposer influenced acceptance rates. SCZ had significantly lower acceptance rates than HV for slightly unequal offers (t = 3.94, p = < 0.0001). However, there was no significant difference between SCZ and HV for other offers. Gender and emotional expression of the proposer did not significantly influence the outcome. These results suggest aberrant social decision making and increased inequity aversion in patients with SCZ. The difficulty in incorporating social components while engaging in financial interactions could have important implications for rehabilitation, functional recovery, and successful community living in SCZ.

Authors+Show Affiliations

National Institute of Mental Health and Neurosciences, Bangalore, Karnataka, India.National Institute of Mental Health and Neurosciences, Bangalore, Karnataka, India.National Institute of Mental Health and Neurosciences, Bangalore, Karnataka, India.National Institute of Mental Health and Neurosciences, Bangalore, Karnataka, India.National Institute of Mental Health and Neurosciences, Bangalore, Karnataka, India.National Institute of Mental Health and Neurosciences, Bangalore, Karnataka, India.National Institute of Mental Health and Neurosciences, Bangalore, Karnataka, India.National Institute of Mental Health and Neurosciences, Bangalore, Karnataka, India.National Institute of Mental Health and Neurosciences, Bangalore, Karnataka, India.National Institute of Mental Health and Neurosciences, Bangalore, Karnataka, India. Electronic address: docnaren@gmail.com.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32109802

Citation

Patil, Vaishnavi A., et al. "Examination of Social Decision Making in Patients With Schizophrenia Using Ultimatum Game." Asian Journal of Psychiatry, vol. 50, 2020, p. 101937.
Patil VA, Jacob AA, Chacko DM, et al. Examination of social decision making in patients with schizophrenia using ultimatum game. Asian J Psychiatr. 2020;50:101937.
Patil, V. A., Jacob, A. A., Chacko, D. M., Chakrabarti, D., Devi, P., Thonse, U., Kumar, V., Varambally, S., Venkatasubramanian, G., & Rao, N. P. (2020). Examination of social decision making in patients with schizophrenia using ultimatum game. Asian Journal of Psychiatry, 50, 101937. https://doi.org/10.1016/j.ajp.2020.101937
Patil VA, et al. Examination of Social Decision Making in Patients With Schizophrenia Using Ultimatum Game. Asian J Psychiatr. 2020;50:101937. PubMed PMID: 32109802.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Examination of social decision making in patients with schizophrenia using ultimatum game. AU - Patil,Vaishnavi A, AU - Jacob,Arpitha Anna, AU - Chacko,Dona Maria, AU - Chakrabarti,Dhritiman, AU - Devi,Priyanka, AU - Thonse,Umesh, AU - Kumar,Vijay, AU - Varambally,Shivarama, AU - Venkatasubramanian,Ganesan, AU - Rao,Naren P, Y1 - 2020/02/11/ PY - 2019/10/22/received PY - 2020/02/08/accepted PY - 2020/2/29/pubmed PY - 2021/1/16/medline PY - 2020/2/29/entrez KW - Neuroeconomics KW - Schizophrenia KW - Social cognition KW - Social decision making KW - Ultimatum game SP - 101937 EP - 101937 JF - Asian journal of psychiatry JO - Asian J Psychiatr VL - 50 N2 - Intact decision-making skills in the social context are essential for optimal functioning in the community. Despite its significance, social decision making in schizophrenia (SCZ) has not been adequately examined. Hence, we examined social decision making in SCZ using the Ultimatum Game(UG), a neuroeconomic paradigm that involves financial transactions between a proposer and a responder to split a sum of money between them. Thirty male patients with a diagnosis of schizophrenia as per DSM-IV (age = 30 ± 7.08) and thirty age-matched healthy male volunteers (HV;age = 28.48 ± 3.74) participated in the study. All participants functioned as responders and had to either accept or reject offers made by an anonymous proposer. We also examined whether the gender or emotional expression of the proposer influenced acceptance rates. SCZ had significantly lower acceptance rates than HV for slightly unequal offers (t = 3.94, p = < 0.0001). However, there was no significant difference between SCZ and HV for other offers. Gender and emotional expression of the proposer did not significantly influence the outcome. These results suggest aberrant social decision making and increased inequity aversion in patients with SCZ. The difficulty in incorporating social components while engaging in financial interactions could have important implications for rehabilitation, functional recovery, and successful community living in SCZ. SN - 1876-2026 UR - https://www.unboundmedicine.com/medline/citation/32109802/Examination_of_social_decision_making_in_patients_with_schizophrenia_using_ultimatum_game_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S1876-2018(20)30045-9 DB - PRIME DP - Unbound Medicine ER -