1. College of Information Science and Technology, Beijing Normal University, China
2. State Key Laboratory of Cognitive Neuroscience and Learning, Beijing Normal University, China
3. Department of Nursing, Harbin Medical University, Daqing, China
4. CAS Key Laboratory of Behavioral Science, Institute of Psychology, Beijing, China
5. Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
6. Division of Humanities and Social Sciences and Computation and Neural Systems Program, California Institute of Technology, Pasadena, CA, USA