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Non-lateralised deficits of drawing production in hemispatial neglect

Smith, Alastair D. and Gilchrist, I.D. and Butler, S.H. and Muir, Keith and Bone, Ian and Reeves, Ian and Harvey, Monika (2007) Non-lateralised deficits of drawing production in hemispatial neglect. Brain and Cognition, 64 (2). pp. 150-157. ISSN 1090-2147

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Abstract

Spatially lateralised deficits that typically define the hemispatial neglect syndrome have been shown to co-occur with other non-lateralised deficits of attention, memory, and drawing. However even a simple graphic task involves multiple planning components, including the specification of drawing start position and drawing direction. In order to investigate the influence of these factors in neglect we presented patients with a circle-copying task, and specified the drawing start point. The ability to draw from the instructed location was strongly related to tests that measure constructional abilities, but not related to start point laterality. In contrast, the direction in which patients drew the circle was affected by start point laterality: patients with neglect were less likely to draw in a typical direction when the cue was on the affected side of space and this was strongly related to severity of the neglect. Patients with neglect consistently produced circles that were smaller than the model; however, the scaling was not affected by the laterality of the start point, nor was the proportion of drawings correctly started at the cue. These findings demonstrate the complex relationship between neglect and even the simplest test for the syndrome.

Item type: Article
ID code: 9900
Keywords: hemispatial neglect, clock drawing, cueing, Psychology, Neuropsychology and Physiological Psychology, Experimental and Cognitive Psychology, Cognitive Neuroscience
Subjects: Philosophy. Psychology. Religion > Psychology
Department: Faculty of Humanities and Social Sciences (HaSS) > School of Psychological Science and Health > Psychology
Related URLs:
    Depositing user: Strathprints Administrator
    Date Deposited: 11 Apr 2011 15:01
    Last modified: 04 Sep 2014 21:07
    URI: http://strathprints.strath.ac.uk/id/eprint/9900

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