Eye position influences auditory responses in primate inferior colliculus

Neuron. 2001 Feb;29(2):509-18. doi: 10.1016/s0896-6273(01)00222-7.


We examined the frame of reference of auditory responses in the inferior colliculus in monkeys fixating visual stimuli at different locations. Eye position modulated the level of auditory responses in 33% of the neurons we encountered, but it did not appear to shift their spatial tuning. The effect of eye position on auditory responses was substantial-comparable in magnitude to that of sound location. The eye position signal appeared to interact with the auditory responses in at least a partly multiplicative fashion. We conclude that the representation of sound location in primate IC is distributed and that the frame of reference is intermediate between head- and eye-centered coordinates. The information contained in these neurons appears to be sufficient for later neural stages to calculate the positions of sounds with respect to the eyes.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Acoustic Stimulation / methods
  • Animals
  • Eye Movements / physiology*
  • Female
  • Head Movements / physiology*
  • Inferior Colliculi / physiology*
  • Macaca mulatta
  • Magnetic Resonance Imaging
  • Sound Localization / physiology*