Left hemispatial visual neglect associated with a combined right occipital and splenial lesion: another disconnection syndrome.
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.
Park
Key Chung
KC
Department of Neurology, Kyung Hee University School of Medicine, Seoul, Korea.
Jeong
Yong
Y
Lee
Byung Hwa
BH
Kim
Eun-Joo
EJ
Kim
Gyung Moon
GM
Heilman
Kenneth M
KM
Na
Duk L
DL
D000368:Aged; D000369:Aged, 80 and over; D001931:Brain Mapping; D005260:Female; D007839:Functional Laterality / Q000502:physiology; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods; D008297:Male; D008875:Middle Aged; D009483:Neuropsychological Tests / Q000706:statistics & numerical data; D009778:Occipital Lobe / Q000000981:diagnostic imaging / Q000473:pathology*; D010296:Parietal Lobe / Q000000981:diagnostic imaging / Q000473:pathology*; D010468:Perceptual Disorders / Q000473:pathology / Q000503:physiopathology*; D011597:Psychomotor Performance / Q000502:physiology; D015899:Tomography, Emission-Computed, Single-Photon / Q000379:methods; D014796:Visual Perception / Q000502:physiology