“…Many previous studies have investigated the mechanisms underlying such a gap-filling operation. These studies have demonstrated that because of the incremental nature of sentence processing (e.g., Crocker, 1996; Fujita, 2021; Kimball, 1973; Yoshida et al, 2013), readers either recover the information of the filler upon encountering a gap or predictively posit a gap (Aoshima et al, 2004; Cunnings & Sturt, 2018; Frazier & Clifton, 1989; Frazier & Flores d’Arcais, 1989; Kim et al, 2020; Lee, 2004; Nakano et al, 2002; Nicol & Swinney, 1989; Omaki et al, 2015; Parker, 2017; Phillips, 2006; Pickering & Guy, 1991; Pickering & Traxler, 2003; Stowe, 1986; Traxler & Pickering, 1996; Wagers & Phillips, 2014). For example, Traxler and Pickering (1996) tested sentences (2a/b) below.…”