Limb Activation and the Rehabilitation of Unilateral Neglect: Evidence of Task-Specific Effects

Brown, Victoria H.

doi:10.1093/neucas/5.2.129

Cited by 1 publication

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“…Although some work has been conducted in this area (e.g. [8] ; [21] ), surprisingly the studies have not attempted to manipulate attentional orienting. Using the RDE paradigm we examined the effects of the prior allocation of attention to either ipsilesional or contralesional space on saccadic orienting in P1, and also evaluated whether there was any dissociation between the saccadic orienting system and conscious awareness (as indexed by the verbal detection task) for stimuli presented in P1’s ‘neglected’ hemifield.…”

Section: Experiments 2: the Remote Distractor Taskmentioning

confidence: 99%

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

2012

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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.

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Section: Experiments 2: the Remote Distractor Taskmentioning

confidence: 99%