“…Mean reference‐to‐baseline amplitudes within these windows were computed for each participant, distractor condition, presentation phase, and electrode. To examine topographical effects systematically, the electrodes were split according to their caudality (anterior, central, posterior) and laterality (left, medial, right) into nine clusters of electrodes of approximately the same size (left anterior [LA; Af3, F3, F7], medial anterior [MA; Fz, Fc1, Fc2], right anterior [RA; Af4, F4, F8], left central [LC; Fc5, C5, C3, Cp5], medial central [MC; Cz, Cp1, Cp2], right central [RC; Fc6, C4, C6, Cp6], left posterior [LP; P3, P7, O1], medial posterior [MP; Pz, Po3, Po4, Oz], and right posterior [RP; P4, P8, O2]), as is often done in studies examining auditory selective attention (Mayr, Niedeggen, Buchner, & Orgs, 2006; Mayr, Niedeggen, Buchner, & Pietrowsky, 2003). This has been proven to be a good compromise between spatial resolution and reliability of the measures.…”