Abstract # 2788 Poster # 102:

Scheduled for Friday, June 18, 2010 07:00 PM-09:00 PM: Session 18 (Medallion Ballroom C/D/E/F) Poster Presentation


J. Jin1,2,3, Y. SU1, X. QI4,5, B. LI4, A. Weiss6 and X. Liu7
1Department of Psychology, Peking University, Beijing, Beijing 100871, China, 2Department of Psychology, University of California, Davis, 3California National Primate Research Center, 4College of Life Sciences, and Key Laboratory of Resource Biology and Biotechnology in Western China of Ministry of Education, Northwest University, Xi'an, China, 5Department of Geology, Northwest University, Xi'an, China, 6Scottish Primate Research Group, School of Philosophy, Psychology and Language Sciences, Department of Psychology, The University of Edinburgh, Edinburgh, United Kingdom, 7Beijing Wildlife Park, Beijing, China

Subjective well-being (SWB) reflects overall affect and control. In chimpanzees, SWB is related to personality characteristics of Dominance, Extraversion, and Conscientiousness. We were interested in whether SWB was related to personality and to living environment in snub-nosed monkeys. We studied 68 Sichuan-snub-nosed monkeys living in 3 environments, free-ranging in the wild [QinLing Mountain, n=35], field-cage housed in a zoo [Beijing, n=26] and semi-free-ranging in a zoo [Shanghai, n=7] in China. Personality was assessed using a Chinese-version of a 48-item instrument previously used in rhesus monkeys. SWB was assessed using a 4-item scale previously used for rhesus monkeys. For each instrument, all items (23 in the personality instrument and all 4 SWB items) showing adequate interrater reliabilities and agreements were included in a factor analysis, which yielded three personality factors (Aggression, Sociability, and Neuroticism) and one SWB factor. Wild monkeys [Qinling, M=5.25] were significantly higher on SWB than field-cage housing ones [Beijing, M=4.41] [F(2,65)=6.42, P<0.01, with post-hoc Scheffe’s tests]. Neither differed significantly from semi-free-ranging monkeys [Shanghai, M=4.63]. Aggression was positively related to SWB [r=0.61, P<0.001]. Regression analysis indicated that Aggression had a larger effect on SWB than living environment [Standardized Coefficients: Aggression, beta=0.63, F(1,48)=35.95, P<0.001; living environment, beta=0.28, F(2,48)=6.86, P<0.01]. Together with previous studies in chimpanzees, orangutans and humans, these findings indicate that SWB and personality may have co-evolved. Grant: NNSF (China)-30970907, China Scholarship Fund.