Re‐examining format distortion and orthographic neighbourhood size effects in the left,central and right visual fields

Research has shown orthographic neighbourhood size effects (ONS) in the left visual field (LVF) but not in the right visual field (RVF). An earlier study examined the combined effects of ONS and font distortion in the LVF and RVF, but did not find an interaction. The current lexical decision experiment re‐examined the interaction between ONS and format distortion at fixation and in the LVF and RVF with the addition of several methodological improvements. Main results replicated previous findings and extended them by indicating that (a) ONS effects in the LVF are immune to the putatively disruptive effects of format distortion, (b) format distortion revealed ONS effects in the RVF and (c) large orthographic neighbourhood size slowed pseudoword rejections regardless of format distortion or visual field presentation. Results are discussed within the context of relevant literature on the visual field laterality of visuoperceptual‐orthographic processing.