Auditory scene analysis following unilateral inferior colliculus infarct

Neuroreport. 2007 Nov 19;18(17):1793-6. doi: 10.1097/WNR.0b013e3282f1a96d.


Event-related potentials in the form of mismatch negativity were recorded to investigate auditory scene analysis capabilities in a person with a very circumscribed haemorrhagic lesion at the level of the right inferior colliculus. The results provide the first objective evidence that processing at the level of the inferior colliculus plays an important role in human auditory frequency discrimination. Moreover, the electrophysiological data suggest that following this unilateral lesion, the auditory pathways fail to reorganize efficiently.

Publication types

  • Case Reports
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Acoustic Stimulation
  • Auditory Perception / physiology*
  • Cerebral Infarction / physiopathology*
  • Child
  • Discrimination, Psychological / physiology
  • Electroencephalography
  • Evoked Potentials / physiology
  • Humans
  • Inferior Colliculi / physiopathology*
  • Magnetic Resonance Imaging
  • Male
  • Space Perception / physiology*