Hypergraphia: A right hemisphere syndrome

Atsushi Yamadori, Etsuro Mori, Masayasu Tabuchi, Yutaka Kudo, Yoko Mitani

Research output: Contribution to journalArticle

38 Citations (Scopus)


A new right hemisphere symptom is reported. Five stroke patients with lesions in the perisylvian cortico-subcortical or thalamic region of the right hemisphere produced linguistically correct but semantically loose writing. The behaviour was initiated by subtle prompting and continued semiautomatically. A possible mechanism underlying this hypergraphia is discussed.

Original languageEnglish
Pages (from-to)1160-1164
Number of pages5
JournalJournal of Neurology, Neurosurgery and Psychiatry
Issue number10
Publication statusPublished - 1986

ASJC Scopus subject areas

  • Surgery
  • Clinical Neurology
  • Psychiatry and Mental health

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    Yamadori, A., Mori, E., Tabuchi, M., Kudo, Y., & Mitani, Y. (1986). Hypergraphia: A right hemisphere syndrome. Journal of Neurology, Neurosurgery and Psychiatry, 49(10), 1160-1164. https://doi.org/10.1136/jnnp.49.10.1160