DISORDERS OF BODY SCHEME AFTER STROKE
Journal Title: Acta Neuropsychologica - Year 2007, Vol 5, Issue 1
Abstract
Background and purpose. The aim of this study was to determine if brainlesions located in the parieto-temporo-occipital area (PTO) are associatedwith such disorders of body scheme as autotopagnosia, finger agnosia andright-left disorientation, if these disorders result from damage to the left orright brain hemisphere, and if other cognitive disorders may be influencingtest results in studies of body scheme disorders.Material and methods. Two groups were examined: 16 patients afterstroke in the right or left PTO and a control group consisting of 11 personswith no brain lesions. In three clinical trials three aspects of body schemewere tested: localizing body parts, finger gnosia, and right-left orientation.Other neuropsychological methods were used to test visual gnosia, praxia,visuospatial abilities, language, attention and memory. Results were comparedfrom the experimental and control groups, and from two subgroups ofpatients with left- or right-sided brain lesions.Results. There was a significant difference between the experimental andcontrol groups in terms of finger gnosia. Poor performance was observedparticularly among patients with right hemisphere lesions. In the experimentalgroup there were also other cognitive disorders, such as visual agnosia,constructional apraxia and visuospatial disorders. No significant correlationwas found in the examined population between the level of these disturbances and body scheme disorders.Conclusions. The finger agnosia observed in this population of patients occured more frequently after lesions to the right brain hemisphere. Autotopagnosia and finger agnosia seem to be independent of coexisting cognitive disorders.
Authors and Affiliations
Katarzyna Grabska
Keywords
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