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Eye movements and verbal report in a single case of visual neglect.

Benson, Valerie and Ietswaart, Magdalena and Milner, David (2012) 'Eye movements and verbal report in a single case of visual neglect.', PLoS ONE., 7 (8). e43743.

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.

Item Type:Article
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Available under License - Creative Commons Attribution.
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Status:Peer-reviewed
Publisher Web site:https://doi.org/10.1371/journal.pone.0043743
Publisher 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.
Date accepted:24 July 2012
Date deposited:10 May 2018
Date of first online publication:24 August 2012
Date first made open access:No date available

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