“…Many studies employing selective or divided attention tasks, central or lateralized presentation of stimuli, and varied or consistent information at unattended levels report no evidence of lateralized processing for local versus global information (Han et al, 1997(Han et al, , 1999Han & He, 2003;Han et al, 2000a;Heinze et al, 1998;Johannes et al, 1996). However, there is some evidence for lateralization -in the predicted direction -of later components (N250 and P300) under conditions of divided attention (Heinze et al, 1998;Heinze & Münte, 1993), when information at the other level could result in response conflicts (Volberg & Hübner, 2004), when level to be attended was cued immediately before presentation (Yamaguchi, Yamagata, & Kobayashi, 2000), and when targets were compared to nontargets at the two levels (Proverbio, Minniti, & Zani, 1998). Evidence for lateralization of earlier ERP components (P100) has only been reported for a paradigm in which the information at the unattended level was invariable and unrelated to the discrimination task (Evans, Shedden, Hevenor, & Hahn, 2000).…”