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Neuropsychologia. 1997 Dec;35(12):1527-32.

Auditory sustained attention is a marker of unilateral spatial neglect.

Author information

1
MRC Applied Psychology Unit, Addenbrooke's Hospital, Cambridge, U.K. ian.robertson@mrc-apu.cam.ac.uk

Abstract

The relationships between performance on a non-spatially-lateralized measure of sustained attention and spatial bias on tests sensitive to unilateral neglect were considered in a group of 44 patients with right hemisphere lesions following stroke. As predicted from earlier studies showing a strong association between unilateral spatial neglect and sustained attention, performance on a brief and monotonous tone-counting measure formed a significant predictor of spatial bias across a variety of measures of unilateral visual neglect. This study provides further evidence for a very close link between two attentional systems hitherto regarded as being quite separate, namely a spatial attention system implicated in unilateral neglect and a sustained attention system. A close connection between these two systems was predicted by Posner, who argued that the right hemisphere-dominant sustained attention system provides a strong modulatory influence on the functioning of the lateralized posterior attention system.

PMID:
9460722
DOI:
10.1016/s0028-3932(97)00084-5
[Indexed for MEDLINE]

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