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[Mirror-writing in the aged].

M Kuzuya1, T Yamamoto, F Kuzuya

  • 1Department of Geriatrics, Nagoya University School of Medicine.

Nihon Ronen Igakkai Zasshi. Japanese Journal of Geriatrics
|July 1, 1991
PubMed
Summary

Mirror-writing in older adults is linked to brain damage and cognitive decline. This study found a high incidence, particularly in left-handed patients with cerebral lesions and dementia.

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Area of Science:

  • Neurology
  • Geriatrics
  • Cognitive Science

Context:

  • Mirror-writing, characterized by reversed script and letters, is associated with central nervous system damage, particularly hemiplegia.
  • The underlying mechanisms of mirror-writing remain poorly understood.
  • This study focuses on older adults, a demographic not extensively studied for mirror-writing incidence and its neurological correlates.

Purpose:

  • To determine the incidence of mirror-writing in individuals aged 65 and older.
  • To investigate the relationship between mirror-writing, cerebral damage, and cognitive dysfunction in this age group.
  • To explore potential correlations with handedness and specific brain lesion locations.

Summary:

  • A high incidence of mirror-writing was observed in 112 patients (mean age 73.8 years), with no cases found using the right hand.
  • Mirror-writing occurred in 67% of patients with cerebral lesions on CT scans and was more prevalent in left-handed individuals.
  • Over 90% of demented patients (Hasegawa's Dementia Scale score < 20) exhibited mirror-writing with their left hand, and lower HDS scores correlated with higher mirror-writing incidence.

Impact:

  • The findings suggest that mirror-writing in the elderly is a significant indicator of underlying cerebral damage and cognitive impairment.
  • This research highlights the potential of mirror-writing as a clinical sign for early detection of neurological issues in aging populations.
  • Further research can explore the specific neural pathways involved and the prognostic value of mirror-writing in cognitive decline.

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