Across-ear stimulus-specific adaptation in the auditory cortex

Xinxiu Xu, Xiongjie Yu, Jufang He*, Israel Nelken

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

The ability to detect unexpected or deviant events in natural scenes is critical for survival. In the auditory system, neurons from the midbrain to cortex adapt quickly to repeated stimuli but this adaptation does not fully generalize to other rare stimuli, a phenomenon called stimulus-specific adaptation (SSA). Most studies of SSA were conducted with pure tones of different frequencies, and it is by now well-established that SSA to tone frequency is strong and robust in auditory cortex. Here we tested SSA in the auditory cortex to the ear of stimulation using broadband noise. We show that cortical neurons adapt specifically to the ear of stimulation, and that the contrast between the responses to stimulation of the same ear when rare and when common depends on the binaural interaction class of the neurons.

Original languageAmerican English
Article number89
JournalFrontiers in Neural Circuits
Volume8
Issue numberJULY
DOIs
StatePublished - 30 Jul 2014

Keywords

  • Auditory cortex
  • Binaural interaction
  • Rat
  • Sound location
  • Stimulus-specific adaptation

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