“…Among these considerations are several particularly influential issues (Smith et al, 2017): (a) the choice of reference (or CSD transformation), (b) the selection of methods for handling artifacts, (c) using designs with resting state versus experimental challenges, and (d) specifying models explicitly for testing mediating and moderating relationships of frontal asymmetry with individual differences or experimental manipulations. In this issue, several articles include exemplary treatment of these issues including the use of the CSD transformation (Rodrigues, M€ uller, M€ uhlberger, & Hewig, 2018;Smith, Cavanagh, & Allen, 2018) and experimental state manipulations (Meyer et al, 2018;Nelson, Kessel, Klein, & Shankman, 2018;Rodrigues et al, 2018;Schmid, Hackel, Jasperse, & Amodio, 2018;Wacker, 2018).…”