Abstract
Damage to the left occipital lobe and the splenium or forceps major is often associated with pure alexia, thought to be an occipital-temporoparietal disconnection syndrome. A patient with the parallel lesion, a combined right occipital and splenial lesion, showed severe left-sided visual spatial neglect, but no significant neglect in other sensory modalities. This visual neglect might be related to a disconnection between the visual information processed by the left occipital lobe and the right posterior temporal-inferior parietal areas that mediate attention in the left hemispace.
Publication types
-
Case Reports
-
Comparative Study
-
Research Support, Non-U.S. Gov't
MeSH terms
-
Aged
-
Aged, 80 and over
-
Brain Mapping
-
Female
-
Functional Laterality / physiology
-
Humans
-
Magnetic Resonance Imaging / methods
-
Male
-
Middle Aged
-
Neuropsychological Tests / statistics & numerical data
-
Occipital Lobe / diagnostic imaging
-
Occipital Lobe / pathology*
-
Parietal Lobe / diagnostic imaging
-
Parietal Lobe / pathology*
-
Perceptual Disorders / pathology
-
Perceptual Disorders / physiopathology*
-
Psychomotor Performance / physiology
-
Tomography, Emission-Computed, Single-Photon / methods
-
Visual Perception / physiology