Early multisensory integration of self and source motion in the auditory system

Eyal Wigderson*, Israel Nelken, Yosef Yarom

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

15 Scopus citations

Abstract

Discriminating external from self-produced sensory inputs is a major challenge for brains. In the auditory system, sound localization must account for movements of the head and ears, a computation likely to involve multimodal integration. Principal neurons (PNs) of the dorsal cochlear nucleus (DCN) are known to be spatially selective and to receive multimodal sensory information. We studied the responses of PNs to body rotation with or without sound stimulation, as well as to sound source rotation with stationary body. We demonstrated that PNs are sensitive to head direction, and, in the presence of sound, they differentiate between body and sound source movement. Thus, the output of the DCN provides the brain with enough information to disambiguate the movement of a sound source from an acoustically identical relative movement produced by motion of the animal.

Original languageAmerican English
Pages (from-to)8308-8313
Number of pages6
JournalProceedings of the National Academy of Sciences of the United States of America
Volume113
Issue number29
DOIs
StatePublished - 19 Jul 2016

Keywords

  • Dorsal cochlear nucleus
  • Multisensory integration
  • Sound localization

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