Right-sided neglect in a left-hander: evidence for reversed hemispheric specialization of attention capacity.
Severe hemi-spatial neglect, anosognosia, contralateral hypokinesia, aprosodia, and visual-spatial constructive difficulties--typically seen in right-handers with right hemisphere lesions--were observed in a left-handed patient with an acute left frontal cortical and subcortical infarct. There was no evidence of accompanying aphasia and the neglect syndrome gradually resolved over a 2-week period. The assumption by the left hemisphere of a classic right hemisphere attention, visuo-spatial and prosodic superiority may represent a case of reversed hemispheric specialization.
Dronkers
N F
NF
Veterans Administration Medical Center, Martinez, California 94553.
Knight
R T
RT
D001143:Arousal / Q000502:physiology*; D001288:Attention / Q000502:physiology*; D002544:Cerebral Infarction / Q000503:physiopathology*; D004292:Dominance, Cerebral / Q000502:physiology*; D005260:Female; D005625:Frontal Lobe / Q000503:physiopathology; D007839:Functional Laterality / Q000502:physiology*; D006429:Hemiplegia / Q000503:physiopathology*; D006801:Humans; D008875:Middle Aged; D009483:Neuropsychological Tests; D009949:Orientation / Q000502:physiology; D011597:Psychomotor Performance / Q000502:physiology