TY - JOUR

T1 - The role of orthographic neighbourhood effects in lateralized lexical decision: a replication study and meta-analysis

AU - Parker, Adam J

AU - Egan, Ciara

AU - Grant, Jack H

AU - Harte, Sophie

AU - Hudson, Brad T

AU - Woodhead, Zoe V J

PY - 2021/4/28

Y1 - 2021/4/28

N2 - 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. [Abstract copyright: ©2021 Parker et al.]

AB - 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. [Abstract copyright: ©2021 Parker et al.]

KW - Cerebral hemisphere

KW - Laterality

KW - Lateralized presentation

KW - Orthographic neighbourhood effects

KW - Replication

KW - Systematic review and meta-analysis

U2 - 10.7717/peerj.11266

DO - 10.7717/peerj.11266

M3 - Article

C2 - 33986993

VL - 9

JO - PeerJ

JF - PeerJ

SN - 2167-8359

M1 - e11266

ER -