Personality and neurochemicals in the human brain: A preliminary study using 1H MRS

作     者：XU Shiyong1,2, PENG Danling2, JIN Zhen3, LIU Hongyan2 &YANG Jie2 1. School of Labor relations and human resources, Renmin University of China, Beijing 100872, China 2. State Key Laboratory of Cognitive Neuroscience and Learning, Bei- jing Normal University, Beijing 100875, China 3. Center for fMRI and Department of Radiology, 306 Hospital, Beijing 100101, China 

出 版 物：《Science Bulletin》 (科学通报(英文版))

年 卷 期：2005年第20期

页      面：64-68页

学科分类：0831[工学-生物医学工程（可授工学、理学、医学学位）] 100207[医学-影像医学与核医学] 1002[医学-临床医学] 08[工学] 1010[医学-医学技术（可授医学、理学学位）] 10[医学] 

主　　题：extraversion introversion neurochemical 1H MRS. 

摘      要：To investigate the neuro-biological bases of introversion-extraversion personality traits, the concentra- tion of four neurochemicals (Cho, mI, α-Glx and NAA) in anterior cigulate gyrus between normal extroverts and in- troverts were examined using non-invasive 1H MRS tech- nique. Our study revealed that introverts have significantly higher level of α-Glx, Cho and mI in the anterior cingulate gyrus than extroverts. This result provides new evidence that the anterior cingulate gyrus is related to personality traits partly in support of Eysenck’s supposition that introverts have higher arousal level than extroverts. Moreover, this result offers neurochemical data for psychobiological theo- ries of personality.