Open AccessEditorial by Yudong Zhang 1,2,* and Zhengchao Dong 3,4 1 School of Computing and Mathematic Sciences, University of Leicester, Leicester LE1 7RH, UK 2 Department of Information Systems, Faculty of Computing and Information Technology, King Abdulaziz University, Jeddah 21589, Saudi Arabia 3 Molecular Imaging and Neuropathology Division, Columbia University, New York, NY 10032, USA 4 New York State Psychiatric Institute, New York, NY 10032, USA * Author to whom correspondence should...