Eye Movements and Verbal Report in a Single Case of Visual Neglect

Benson, Valerie; Ietswaart, Magdalena; Milner, David

doi:10.1371/journal.pone.0043743

Eye Movements and Verbal Report in a Single Case of Visual Neglect

Benson, Valerie; Ietswaart, Magdalena; Milner, David

Authors

Valerie Benson

Magdalena Ietswaart

David Milner

Abstract

In this single case study, visuospatial neglect patient P1 demonstrated a dissociation between an intact ability to make appropriate reflexive eye movements to targets in the neglected field with latencies of <400 ms, while failing to report targets presented at such durations in a separate verbal detection task. In contrast, there was a failure to evoke the usually robust Remote Distractor Effect in P1, even though distractors in the neglected field were presented at above threshold durations. Together those data indicate that the tight coupling that is normally shown between attention and eye movements appears to be disrupted for low-level orienting in P1. A comparable disruption was also found for high-level cognitive processing tasks, namely reading and scene scanning. The findings are discussed in relation to sampling, attention and awareness in neglect.

Citation

Benson, V., Ietswaart, M., & Milner, D. (2012). Eye Movements and Verbal Report in a Single Case of Visual Neglect. PLoS ONE, 7(8), Article e43743. https://doi.org/10.1371/journal.pone.0043743

Journal Article Type	Article
Acceptance Date	Jul 24, 2012
Online Publication Date	Aug 24, 2012
Publication Date	Aug 24, 2012
Deposit Date	May 10, 2018
Publicly Available Date	May 10, 2018
Journal	PLoS ONE
Publisher	Public Library of Science
Peer Reviewed	Peer Reviewed
Volume	7
Issue	8
Article Number	e43743
DOI	https://doi.org/10.1371/journal.pone.0043743

Files

Published Journal Article (574 Kb)
PDF

Publisher Licence URL
http://creativecommons.org/licenses/by/4.0/

Copyright Statement
© Benson et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.