“…Most relevant to the present study is the finding that violations of morphosyntactic constraints, including subject-verb agreement violations, typically elicit an enhanced positive-going wave beginning around 500ms poststimulus which is most prominent over centroparietal scalp regions (the P600 effect: Friederici, Hahne, & Mecklinger, 1996; Kaan, Harris, Gibson, & Holcomb, 2000; Molinaro, Barber, & Carreiras, 2011; Molinaro, Vespignani, Zamparelli, & Job, 2011; Nevins, Dillon, Malhotra, & Phillips, 2007; Osterhout & Holcomb, 1992; Osterhout & Mobley, 1995; Rossi, Gugler, Hahne, & Friederici, 2005). Some studies of morphosyntactic processing have additionally elicited a negativity preceding the P600, which is sometimes strongest over left anterior portions of the scalp (the left anterior negativity, or LAN: e.g., Barber & Carreiras, 2005; Friederici et al, 1996; Hahne & Friederici, 1999; Osterhout & Holcomb, 1992; Osterhout & Mobley, 1995), though the LAN is highly inconsistent across studies (e.g., Allen, Badecker, & Osterhout, 2003; Frenck-Mestre, Osterhout, McLaughlin, & Foucart, 2008; Hagoort & Brown, 1999, 2000; Hagoort, 2003; Kim & Osterhout, 2005; Nevins et al, 2007; Osterhout, Allen, McLaughlin, & Inoue, 2002; Osterhout & Mobley, 1995; Tanner & Van Hell, 2014).…”