Differential hand-neglect after a callosal lesion.
BACKGROUND
The relationship between hemispatial neglect and callosal lesions is not fully understood.


METHODS
A 74-year-old woman exhibited destruction of the posterior part of the genu and the entire truncus of the corpus callosum and a part of the right cingulate sulcus after infarction of the right pericallosal artery.


RESULTS
Three years after the infarction, severe left-sided unilateral spatial neglect was noted for the right hand and mild right-sided unilateral spatial neglect for the left hand.


CONCLUSIONS
These findings are consistent with the model of right hemisphere dominance for spatial attention. The corpus callosum lesion itself could have been responsible for the patient's disconnection neglect.
Funayama
Michitaka
M
Department of Neuropsychiatry, Ashikaga Red Cross Hospital, Ashikaga-City, Tochigi, Japan. Fimndia@aol.com
Muramatsu
Taro
T
Kato
Motoichiro
M
D000368:Aged; D002544:Cerebral Infarction / Q000150:complications / Q000473:pathology / Q000523:psychology*; D003337:Corpus Callosum / Q000473:pathology*; D005260:Female; D007839:Functional Laterality; D006225:Hand / Q000502:physiology*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008568:Memory / Q000502:physiology; D009483:Neuropsychological Tests; D010468:Perceptual Disorders / Q000209:etiology / Q000473:pathology / Q000523:psychology*; D014796:Visual Perception / Q000502:physiology; D014888:Wechsler Scales