The behavior and vestibular nuclear morphology of otoconia-deficient pallid mutant mice

Dennis R. Trune, David J. Lim

Research output: Contribution to journalArticle

20 Scopus citations


Pallid mutant mice with no otoconia in their gravity receptors were behaviorally tested and their vestibular nuclei measured to determine if this developmental sensory deprivation had any detrimental effect on central vestibular structure and function. This absence of otoconia was correlated with disorientation in water and absence of air righting reflexes. The inferior and superior vestibular nuclei were smaller than normal, but neurons within regions that receive direct gravity receptor input were smaller only unilaterally in medial vestibular nucleus. It was tentatively concluded that the sensory deprivation resulting from reduced gravity receptor input was responsible for the behavioral and central morophological abnormalities.

Original languageEnglish (US)
Pages (from-to)53-69
Number of pages17
JournalJournal of Neurogenetics
Issue number1
StatePublished - Jan 1 1983



  • Otoconia
  • Pallid mutant mice
  • Vestibular deprivation
  • Vestibular nuclei

ASJC Scopus subject areas

  • Genetics
  • Cellular and Molecular Neuroscience

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