A novel construct of anhedonia revealed in a Chinese sample via the Revised Physical and Social Anhedonia Scales

BMC Psychiatry

Xiaosheng Wang¹  Panwen Zhang²  Jiayue He²  Shulin Fang²  Qiongqiong Wu²  Xingwei Luo²  Xiang Wang³  Shuqiao Yao³  Fusheng Luo⁴  Jianghua Zhang⁵  Yan Xiong⁵ 

[1] Department of Human Anatomy and Neurobiology, Xiangya School of Medicine, Central South University, 410013, Changsha, China;Medical Psychological Center, the Second Xiangya Hospital, Central South University, 410011, Changsha, China;Medical Psychological Center, the Second Xiangya Hospital, Central South University, 410011, Changsha, China;Medical Psychological Institute of Central South University, 410011, Changsha, China;National Clinical Research Center for Mental Disorders, 410011, Changsha, China;Student Affairs Department, Central South University of Forestry and Technology, 410004, Changsha, China;Student Affairs Department, Central South University, 410083, Changsha, China;

关键词: Anhedonia;    Revised Physical Anhedonia Scale (RPAS);    Revised Social Anhedonia Scale (RSAS);    Factor structure;    Second-order hierarchical model;    Chinese version;   

DOI  :  10.1186/s12888-020-02900-w

来源: Springer

【 摘 要 】

BackgroundAnhedonia is a core clinical symptom of mental disorders. The Revised Physical Anhedonia Scale (RPAS) and the Revised Social Anhedonia Scale (RSAS) have been applied in clinical and non-clinical samples since 1980s. However, the construct of a unified RPAS&RSAS for comprehensive measurement of anhedonia has never been explored. Therefore, the purpose of our study was to examine the factor structure of the unified RPAS&RSAS among undergraduates and clinical patients.MethodsA total of 3435 undergraduates from two universities and 294 clinical patients with mental disorders had completed the Chinese version of the RPAS and the RSAS. Exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) were each conducted to reveal the constructs of the RPAS and the RSAS. CFA was used to evaluate first- and second-order models for the unified RPAS&RSAS in undergraduates and clinical patients. The internal consistency and test-retest reliability of the RPAS and the RSAS were also evaluated.ResultsEFA and CFA indicated 2-factor structures for RPAS and RSAS, with the factors being defined as anticipatory anhedonia and consummatory anhedonia. The second-order model of the unified RPAS&RSAS in the undergraduates and clinical patients both had satisfactory fit index values (Undergraduate sample: CFI = 0.901, TLI = 0.899, RMSEA = 0.055, SRMR = 0.086; Clinical sample: CFI = 0.922, TLI = 0.911, RMSEA = 0.052, SRMR = 0.078). The psychometric robustness of the RPAS&RSAS were confirmed by high internal consistency and test-retest reliability values.ConclusionsThe unified RPAS&RSAS with a second-order structure was confirmed in both undergraduates and clinical samples in Chinese. The construct of anhedonia was refreshed as covering physical and social domains, and each of them includes both anticipatory and consummatory components.

【 授权许可】

CC BY