Cochlear action potential threshold and single unit thresholds

J Acoust Soc Am. 1979 Jan;65(1):254-7. doi: 10.1121/1.382244.


There is a close correlation between the sound pressure of tone burst required to affect a primary auditory neuron at its characteristic frequency and that which will produce a detectable N1 response at the same frequency. Units with thresholds from 80--0 db SPL (recorded from damaged and undamaged cochleas) were 0--20 dB , respectively, more sensitive than the action potential response.

MeSH terms

  • Action Potentials
  • Animals
  • Audiology / instrumentation
  • Cochlear Nerve / physiology*
  • Guinea Pigs