Late-life action tremor in a southern sea otter (Enhydris lutris nereis)

Elan D. Louis, Michael J. Murray, Melissa A. Miller, Seth L. Pullman, Jean Paul G. Vonsattel

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


Although tremor is highly prevalent in human beings, there are few reports of tremor occurring in other mammals. Such tremor can further our insight into the mechanisms and anatomical basis of human tremor disorders. We report on a southern sea otter with a slowly progressive 6.5 to 8.5 Hz action tremor of late life that shared several clinical characteristics with essential tremor. The main pathological finding was in the cerebellum, where there was extensive vacuolation of Purkinje cells.

Original languageEnglish (US)
Pages (from-to)222-226
Number of pages5
JournalMovement Disorders
Issue number2
StatePublished - 2004
Externally publishedYes


  • 'Pathology
  • Animal
  • Essential tremor
  • Toxin
  • Tremor
  • Vacuolation

ASJC Scopus subject areas

  • Neurology
  • Clinical Neurology


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