Smith, A.D. and Gilchrist, I.D. and Butler, S.H. and Harvey, M. (2006) Around the clock surveillance : Simple graphic disturbance in patients with hemispatial neglect carries implications for the clock drawing task. Journal of Neurology, Neurosurgery and Psychiatry, 77 (3). pp. 407-409.
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Background: Drawing, and the clock drawing task in particular, is widely used as a diagnostic tool in the study of hemispatial neglect. It is generally assumed that the errors in graphic production, such as the misplacement of numbers, reflect a visuospatial deficit, and that drawing production itself (for example, producing the circle) is unimpaired. Objectives: To test this assumption by examining whether the production of simple circles is affected by neglect. Methods: 16 right hemisphere stroke patients copied circles of various sizes and their drawings were measured for size accuracy. Results: Patients with more severe neglect produced greater scaling errors, consistently drawing the circle smaller than the original. Errors were not in the horizontal axis alone-shrinkage occurred equally in both height and width axes. Conclusions: Neglect can co-occur with constructional difficulties that serve to exacerbate the symptoms presented. This should be taken into account in the assessment of even apparently simple drawing tasks.
|Keywords:||alzheimers, graphic disturbance, patients, hemispatial neglect, clock drawing task, Psychology, Clinical Neurology, Psychiatry and Mental health, Surgery, Arts and Humanities (miscellaneous)|
|Subjects:||Philosophy. Psychology. Religion > Psychology|
|Department:||Faculty of Humanities and Social Sciences (HaSS) > School of Psychological Science and Health > Psychology|
|Depositing user:||Strathprints Administrator|
|Date Deposited:||18 Apr 2011 09:11|
|Last modified:||15 Apr 2015 10:42|
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