1. College of Computer Science and Technology, Taiyuan University of Technology; Taiyuan 030600 China
2. Brainnetome Center, Institute of Automation, Chinese Academy of Sciences; Beijing 100190 China
3. Institute of Neuroscience and Medicine (INM-1), Research Centre Juelich; 52425 Juelich Germany
4. Institute for Clinical Neuroscience and Medical Psychology, Heinrich-Heine-University Düsseldorf; Düsseldorf 40225 Germany
5. National Laboratory of Pattern Recognition; Institute of Automation, Chinese Academy of Sciences; Beijing 100190 China
6. CAS Center for Excellence in Brain Science and Intelligence Technology, Institute of Automation, Chinese Academy of Sciences; Beijing 100190 China
7. The Queensland Brain Institute, University of Queensland; Brisbane QLD 4072 Australia