Parker Adam J, Egan Ciara, Grant Jack H, Harte Sophie, Hudson Brad T, Woodhead Zoe V J
Department of Experimental Psychology, University of Oxford, Oxford, Oxon, United Kingdom.
School of Psychology, Bangor University, Bangor, Gwynedd, United Kingdom.
PeerJ. 2021 Apr 28;9:e11266. doi: 10.7717/peerj.11266. eCollection 2021.
The effect of orthographic neighbourhood size (N) on lexical decision reaction time differs when words are presented in the left or right visual fields. Evidence suggests a facilitatory N effect (i.e., faster reaction times for words with larger neighbourhoods) in the left visual field. However, the N effect in the right visual field remains controversial: it may have a weaker facilitative role or it may even be inhibitory. In a pre-registered online experiment, we replicated the interaction between N and visual field and provided support for an inhibitory N effect in the right visual field. We subsequently conducted a pre-registered systematic review and meta-analysis to synthesise the available evidence and determine the direction of N effects across visual fields. Based on the evidence, it would seem the effect is inhibitory in the right visual field. Furthermore, the size of the N effect is considerably smaller in the right visual field. Both studies revealed considerable heterogeneity between participants and studies, and we consider the implications of this for future work.
当单词呈现于左视野或右视野时，拼字邻域大小（N）对词汇判断反应时间的影响有所不同。有证据表明，在左视野中存在促进性的N效应（即邻域较大的单词反应时间更快）。然而，右视野中的N效应仍存在争议：它可能具有较弱的促进作用，甚至可能是抑制性的。在一项预先注册的在线实验中，我们重复了N与视野之间的相互作用，并为右视野中的抑制性N效应提供了支持。随后，我们进行了一项预先注册的系统评价和荟萃分析，以综合现有证据并确定不同视野中N效应的方向。基于这些证据，右视野中的效应似乎是抑制性的。此外，右视野中N效应的大小要小得多。两项研究均揭示了参与者和研究之间存在相当大的异质性，我们考虑了这对未来工作的影响。
