“…This technique allows the assessment of spatial similarity in electrophysiological studies regardless of response magnitude and estimates the similarities in underlying neural sources distribution (e.g., Luo, Tian, Song, Zhou, & Poeppel, 2013; Tian & Huber, 2013; Tian & Poeppel, 2010, 2013; Davelaar, Tian, Weidemann, & Huber, 2011; Huber, Tian, Curran, O'Reilly, & Woroch, 2008). In this method, each topographical pattern is considered as a high-dimensional vector, where the number of dimensions equals the number of sensors in recording.…”