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A Parietofrontal Network for Spatial Awareness in the Right Hemisphere of the Human Brain
Paolo Bartolomeo, MD, PhD
Arch Neurol. 2006;63:1238-1241.
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INTRODUCTION
Patients with lesions of the right hemisphere often show signs of left-sided unilateral neglect. Left-sided neglect may impair the ability of patients to live independently and entails a poor functional outcome. When exploring a visual scene, patients with left-sided neglect fail to pay attention to left-sided objects. They do not eat from the left part of their dish, they bump their wheelchair into obstacles situated on their left, and they have a tendency to look to right-sided details as soon as a visual scene unfolds, as if their attention were "magnetically" attracted by these details.1 On visuospatial testing, they fail to cancel or describe left-sided targets in search tasks, deviate rightward when bisecting horizontal lines, and fail to copy the left part of drawings1-2 (Figure 1).
Figure appears in full text version.
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Figure 1. Copy of a drawing and bisection of a line by a patient with left-sided neglect.
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The . . . [Full Text of this Article]
METHODS
RELEVANCE TO THE PRACTICE OF NEUROLOGY
RELEVANCE TO THE STUDY OF NEUROSCIENCE
AUTHOR INFORMATION
Author Affiliation: INSERM Unit 610, and Fédération de Neurologie, Assistance PubliqueHôpitaux de Paris, Hôpital de la Salpêtrière, Université Pierre et Marie Curie-Paris 6, Paris, France.
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