April 1990, Vol 47, No. 4 >

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Article | April 1990

How Old Is the Lesion Presenting as Schizophrenia? Relevance to the Laterality Question

H. STEFAN BRACHA, MD

Arch Gen Psychiatry. 1990;47(4):393. doi:10.1001/archpsyc.1990.01810160093013.

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By error, the following complete exchange was omitted in the March 1990 issue.— DXF.

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

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BRACHA H. 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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