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Virtual Reality Tools for Assessing Unilateral Spatial Neglect: A Novel Opportunity for Data Collection
Published on: March 10, 2021
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Pathological structure of visuospatial neglect: A comprehensive multivariate analysis of spatial and non-spatial
Yusaku Takamura1,2, Shintaro Fujii2,3, Satoko Ohmatsu1
1Department of Rehabilitation for the Movement Functions, Research Institute of National Rehabilitation Center for Persons with Disabilities, 4-1 Namiki, Tokorozawa, Saitama, Japan.
Iscience
|April 19, 2021
Summary
Visuospatial neglect (VSN) involves multiple attention deficits, not just one. This study identifies distinct VSN components, including arousal, exogenous attention, and spatial working memory issues, linked to specific brain damage.
Area of Science:
- Neuroscience
- Neurology
- Cognitive Psychology
Background:
- Visuospatial neglect (VSN) is a neurological disorder affecting attention to stimuli contralateral to brain lesions.
- Understanding the distinct components of VSN and their neural underpinnings is crucial for effective treatment.
Purpose of the Study:
- To comprehensively analyze the different elements of visuospatial neglect (VSN) in patients with right hemisphere stroke.
- To identify distinct clusters of VSN symptoms and their corresponding neural correlates.
Main Methods:
- Multivariate analysis using principal component analysis (PCA) and cluster analysis on patients with right hemisphere stroke.
- Lesion analysis to determine the neural correlates associated with each identified VSN cluster.
Main Results:
- PCA-based cluster analysis revealed three distinct aspects of VSN: low arousal/attention, exogenous neglect, and spatial working memory (SWM) deficit.
- Lesion analysis linked exogenous attention deficits to the ventral attention network and SWM deficits to parietal damage.
Conclusions:
- Visuospatial neglect is characterized by multiple, distinct components related to attention network deficits.
- These findings enhance the understanding of the complex mechanisms underlying VSN and its pathological structure.
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