“…A visual scene is continuously segm ented (Eckhom , 1999;M arcus & Van Essen, 2002;Scholte, Jolij, Fahrenfort, & Lamme, 2008) into overlay (B. L. A nderson, 2008), fixational and background layers (Baijal, 2009;Fang, Boyaci, & K ersten, 2009;Lawlor, Holtmann-Rice, Huggins, Ben-Shahar, & Zucker, 2009) dependent on attentional shifts (J. M. Brown, 2009;Buschman & M iller, 2010;Com pte & W ang, 2006;Drummond & Shomstein, 2010;Herrington & Assad, 2009Ikkai & Curtis, 2008;Kelley, Serences, Giesbrecht, & Yantis, 2008;Paffen & Van der Stigchel, 2010;W om elsdorf et al, 2008. While this is future work, it is essential in understanding the overall function o f visuospatial cognition.…”