Differences between cats in response properties of horizontal semicircular canal primary afferents

R. J. Peterka, D. L. Tomko

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


The response properties of cat horizontal canal afferents (N = 81) were characterized by three parameters: their long time constants (τ), low frequency gain constants (G1), and middle frequency gain constants (Gm). An average value of each of these parameters was calculated for each of eight animals and comparisons were made across animals. There were significant differences between individual animals in their average values of τ and Gm. There was also a significant negative correlation between τ's and Gm's. An animal with a larger average τ tended to have a smaller average Gm. We also used anatomic data on membranous canal duct diameter from the literature to independently estimate the potential effect of interanimal anatomic variability on the predicted range of τ and Gm values in a population. We then compared the data from our 81 afferents with the predictions from the anatomic data.

Original languageEnglish (US)
Pages (from-to)162-166
Number of pages5
JournalExperimental Brain Research
Issue number1
StatePublished - Aug 1984
Externally publishedYes


  • Cat
  • Semicircular canal biophysics
  • Semicircular canal time constants
  • Vestibular nerve afferents
  • Vestibular neurophysiology

ASJC Scopus subject areas

  • General Neuroscience


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