| Prism adaptation moves neglect-related perseveration to contralesional space. | |
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MedLine Citation:
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PMID: 19057176 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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BACKGROUND: Hemi-neglect is a disorder characterized by a disregard of contralesional stimuli. Some neglect patients also show an "exaggerated attention" for the ipsilesional field, reflected in perseverative responses, such as repetitive fixations in the ipsilesional field, ipsilesional revisitings on standard cancellation, or exaggerations in drawings on the ipsilesional side. OBJECTIVE AND METHOD: It is still unclear whether neglect and perseveration are due to a single underlying mechanism. In the present study, we will examine the effect of 4-day-in-a-row prism adaptation on neglect and perseveration severity in a patient with severe perseverations. Additionally, we will examine whether the position of omissions and perseverations on the Star Cancellation will change during the intervention. RESULTS: Our patient showed a decrease in neglect severity and an increase in perseveration severity, suggesting that perseveration and neglect are dissociated phenomena. Interestingly, 4-day-in-a-row prism adaptation gradually moved the predominant position of perseverative responses from right to left as neglect decreased with treatment. CONCLUSIONS: Perseverative responses do not necessarily occur in the ipsilesional sector of space as is generally assumed. Instead, the position of the revisits may be determined by the severity of the neglect, and may shift when the focus of attention moves more contralesionally with recovery. |
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Authors:
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Gudrun M S Nys; Ruth Seurinck; H Chris Dijkerman |
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Publication Detail:
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Type: Case Reports; Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Cognitive and behavioral neurology : official journal of the Society for Behavioral and Cognitive Neurology Volume: 21 ISSN: 1543-3641 ISO Abbreviation: Cogn Behav Neurol Publication Date: 2008 Dec |
Date Detail:
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Created Date: 2008-12-05 Completed Date: 2009-03-05 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101167278 Medline TA: Cogn Behav Neurol Country: United States |
Other Details:
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Languages: eng Pagination: 249-53 Citation Subset: IM |
Affiliation:
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Laboratory for Neuropsychology, Department of Neurology, Ghent University, Belgium. Gudrun.Nys@UGent.be |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adaptation, Physiological
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physiology* Aged, 80 and over Attention Female Functional Laterality / physiology* Humans Memory / physiology Memory, Short-Term / physiology Neuropsychological Tests Perceptual Disorders / psychology* Psychomotor Performance / physiology Reading |
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