Xun Chen, Z. Jane Wang, and Martin J. McKeown Joint Blind Source Separation for Neurophysiological Data Analysis Multiset and multimodal methods C onventional blind source separation (BSS) methods have become widely adopted tools for neurophysiological data analysis. However, the increasing availability of multiset and multimodal neurophysiological data has posed new challenges for BSS methods originally designed to analyze one data set at a time. Concomitantly, there is growing recognition that joint analysis of neurophysiological data has the potential to substantially enhance our understanding of brain function by extracting information from Digital Object Identifier 10.1109/MSP.2016.2521870 Date of publication: 27 April 2016 86 IEEE Signal Processing Magazine | May 2016 | 1053-5888/16©2016IEEE