Auditory sustained attention is a marker of unilateral spatial neglect

Author(s): Manly, T., Beschin, N., Daini, R., HaeskeDewick, H., Homberg, V., Jehkonen, M., Pizzamiglio, G., Shiel, A., Weber, E.

Journal/Book: Neuropsychologia. 1997; 35: The Boulevard, Langford Lane, Kidlington, Oxford, England OX5 1GB. Pergamon-Elsevier Science Ltd. 1527-1532.

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 fcr 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.

Note: Article Robertson IH, Addenbrookes Hosp, Rehabil Res Grp, Appl Psychol Unit, MRC, Box 58, Cambridge CB2 2QQ, ENGLAND

Keyword(s): stroke; parietal; lateralization; right hemisphere; frontal; DOMINANCE; LESIONS

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