Abstract
Right hemisphere dominance for visuospatial attention is characteristic of most humans, but its anatomical basis remains unknown. We report the first evidence in humans for a larger parieto-frontal network in the right than left hemisphere, and a significant correlation between the degree of anatomical lateralization and asymmetry of performance on visuospatial tasks. Our results suggest that hemispheric specialization is associated with an unbalanced speed of visuospatial processing.
© 2011 Nature America, Inc. All rights reserved.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Adult
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Algorithms
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Animals
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Attention / physiology*
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Brain / physiology*
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Brain Mapping*
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Diffusion Magnetic Resonance Imaging / methods
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Female
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Functional Laterality / physiology*
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Haplorhini
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Humans
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Image Processing, Computer-Assisted
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Male
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Neuropsychological Tests
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Pattern Recognition, Visual / physiology
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Photic Stimulation / methods
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Postmortem Changes
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Psychomotor Performance / physiology
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PubMed / statistics & numerical data
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Reaction Time / physiology
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Space Perception / physiology*
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Statistics as Topic
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Stereotaxic Techniques
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Visual Pathways / physiology
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Young Adult