No indication of brain reorganization after unilateral ischemic lesions of the auditory cortex

Neurology. 2006 Sep 26;67(6):1059-61. doi: 10.1212/01.wnl.0000237426.07001.28.


We used magnetoencephalography to study contralesional auditory reorganization in three men with chronic unilateral ischemic lesions of the auditory cortex. Although no response was found over the lesioned hemisphere, processing in the unaffected hemisphere was indistinguishable vs healthy controls. In contrast to sensorimotor and language systems, the auditory system seems to lack contralateral reorganization, presumably because patients are typically not aware of hearing deficits and thus do not perform training.

Publication types

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

MeSH terms

  • Acoustic Stimulation / methods
  • Adult
  • Aged
  • Auditory Cortex / injuries
  • Auditory Cortex / pathology*
  • Brain Ischemia / complications
  • Brain Ischemia / pathology
  • Evoked Potentials, Auditory / physiology
  • Humans
  • Infarction, Middle Cerebral Artery / etiology
  • Infarction, Middle Cerebral Artery / physiopathology*
  • Male
  • Neuronal Plasticity / physiology*
  • Time Factors