“…In the past decade, the so-called contralateral delay activity (CDA; Vogel & Machizawa, 2004) of the EEG has been proven to be a useful tool in this regard (e.g., Vogel, McCollough, & Machizawa, 2005; Jost, Bryck, Vogel, & Mayr, 2011; Jost & Mayr, 2015 online first; Sander, Werkle-Bergner, & Lindenberger, 2011a; Spronk, Vogel, & Jonkman, 2012; Störmer, Li, Heekeren, & Lindenberger, 2013). The CDA is a sustained negative wave measured over the posterior cortex.…”