By error, the following complete exchange was omitted in the March 1990 issue.—
To the Editor.—
The elegant and important data reported by Posner et al1 confirmed our finding2 that some never-medicated schizophrenic patients and some schizophrenic patients free of medication for 6 months or more manifest subtle right hemineglect (inattention to the right hemispace).Regarding the pathogenesis of this lateralized neurological sign, while transient right hemineglect is a hallmark of acute left inferior-parietal injury,3 there is now substantial evidence that environmental factors contributing to schizophrenia may frequently be old, even perinatal.4We recently examined the possibility that in some cases the right hemineglect in chronically psychotic patients may be a manifestation of old inferior-parietal injury. We examined patients with old cortical strokes and found that those who had recovered from old right anterolateral cortical strokes gradually developed a right hemineglect similar to that
BRACHA HS. How Old Is the Lesion Presenting as Schizophrenia? Relevance to the Laterality Question. Arch Gen Psychiatry. 1990;47(4):393. doi:10.1001/archpsyc.1990.01810160093013
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