Skip to main content
Journal of Neurology, Neurosurgery, and Psychiatry logoLink to Journal of Neurology, Neurosurgery, and Psychiatry
. 1980 Sep;43(9):774–780. doi: 10.1136/jnnp.43.9.774

Mirror-reading and writing in association with right-left spatial disorientation.

K M Heilman, G Howell, E Valenstein, L Rothi
PMCID: PMC490667  PMID: 7420101

Abstract

A left-handed patient suddenly developed a right hemiparesis, mirror-reading, and mirror-writing. Although he could discriminate between right and left on himself, he demonstrated right/left spatial disorientation. We propose that his right/left spatial disorientation was induced by a scanning defect. It has been demonstrated that mirror-image engrams are normally available. We believe that a reversal of the learned left-to-right scanning process with the availability of mirror engrams induced mirror-reading. Similarly, reversal of the normal left-to-right writing pattern, with the availability of mirror engrams, induced mirror-writing.

Full text

PDF
774

Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Bradshaw J. L., Nettleton N. C., Patterson K. Identification of mirror-reversed and nonreversed facial profiles in same and opposite visual fields. J Exp Psychol. 1973 Jun;99(1):42–48. doi: 10.1037/h0034737. [DOI] [PubMed] [Google Scholar]
  2. Fischer F. W., Liberman I. Y., Shankweiler D. Reading reversals and developmental dyslexia: a further study. Cortex. 1978 Dec;14(4):496–510. doi: 10.1016/s0010-9452(78)80025-2. [DOI] [PubMed] [Google Scholar]
  3. Galin D., Ellis R. R. Asymmetry in evoked potentials as an index of lateralized cognitive processes: relation to EEG alpha asymmetry. Neuropsychologia. 1975 Jan;13(1):45–50. doi: 10.1016/0028-3932(75)90046-9. [DOI] [PubMed] [Google Scholar]
  4. Kinsbourne M. Eye and head turning indicates cerebral lateralization. Science. 1972 May 5;176(4034):539–541. doi: 10.1126/science.176.4034.539. [DOI] [PubMed] [Google Scholar]
  5. Noble J. Paradoxical interocular transfer of mirror-image discriminations in the optic chiasm sectioned monkey. Brain Res. 1968 Aug 26;10(2):127–151. doi: 10.1016/0006-8993(68)90118-2. [DOI] [PubMed] [Google Scholar]
  6. Paradowski W., Ginzburg M. Mirror writing and hemiplegia. Percept Mot Skills. 1971 Apr;32(2):617–618. doi: 10.2466/pms.1971.32.2.617. [DOI] [PubMed] [Google Scholar]
  7. Satz P. A test of some models of hemispheric speech organization in the left- and right-handed. Science. 1979 Mar 16;203(4385):1131–1133. doi: 10.1126/science.424744. [DOI] [PubMed] [Google Scholar]
  8. Streifler M., Hofman S. Sinistrad mirror writing and reading after brain concussion in a bi-systemic (oriento-occidental) polyglot. Cortex. 1976 Dec;12(4):356–364. doi: 10.1016/s0010-9452(76)80039-1. [DOI] [PubMed] [Google Scholar]

Articles from Journal of Neurology, Neurosurgery, and Psychiatry are provided here courtesy of BMJ Publishing Group

RESOURCES