| Crossed aphasia and visuo-spatial neglect following a right thalamic stroke: a case study and review of the literature. | |
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MedLine Citation:
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PMID: 19096142 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Crossed aphasia in dextrals (CAD) following pure subcortical lesions is rare. This study describes a right-handed patient with an ischemic lesion in the right thalamus. In the post-acute phase of the stroke, a unique combination of 'crossed thalamic aphasia' was found with left visuo-spatial neglect and constructional apraxia. On the basis of the criteria used in Mariën et al. [67], this case-report is the first reliable representative of vascular CAD following an isolated lesion in the right thalamus. Furthermore, this paper presents a detailed analysis of linguistic and cognitive impairments of 'possible' and 'reliable' subcortical CAD-cases published since 1975. Out of 25 patients with a pure subcortical lesion, nine cases were considered as 'possibly reliable or reliable'. A review of these cases reveals that: 1) demographic data are consistent with the general findings for the entire group of vascular CAD, 2) the neurolinguistic findings do not support the data in the general CAD-population with regard to a) the high prevalence of transcortical aphasia and b) the tendency towards a copresence of an oral versus written language dissociation and a 'mirror-image' lesion-aphasia profile, 3) subcortical CAD is not a transient phenomenon, 4) the lesion-aphasia correlations are not congruent with the high incidence of anomalous cases in the general CAD-population, 5) neuropsychological impairments may accompany subcortical CAD. |
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Authors:
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Lieve De Witte; Jo Verhoeven; Sebastiaan Engelborghs; Peter P De Deyn; Peter Mariën |
Publication Detail:
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Type: Case Reports; Journal Article; Review |
Journal Detail:
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Title: Behavioural neurology Volume: 19 ISSN: 0953-4180 ISO Abbreviation: Behav Neurol Publication Date: 2008 |
Date Detail:
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Created Date: 2008-12-19 Completed Date: 2009-02-27 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8914585 Medline TA: Behav Neurol Country: Netherlands |
Other Details:
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Languages: eng Pagination: 177-94 Citation Subset: IM |
Affiliation:
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Department of Linguistics, Vrije Universtiteit Brussel, Brussel, Belgium. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Aged Aphasia / etiology, pathology* Functional Laterality* Humans Language Tests Male Perceptual Disorders / etiology, pathology* Psycholinguistics Space Perception Stroke / complications, pathology* Thalamus / pathology* Visual Perception |
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