Closed eyes condition increases auditory brain responses in schizophrenia

Psychiatry Res. 2013 Feb 28;211(2):183-5. doi: 10.1016/j.pscychresns.2012.04.004. Epub 2012 Nov 11.

Abstract

The 40-Hz auditory steady-state responses (ASSRs) of 14 medicated schizophrenic patients were recorded in eyes-open and eyes-closed conditions as previously done in healthy volunteers. Patients show significantly increased precision of the evoked response with eyes closed, and a significant increase of broad-band noise activity when eyes are open.

MeSH terms

  • Acoustic Stimulation
  • Adult
  • Aged
  • Brain Waves / physiology*
  • Electroencephalography
  • Evoked Potentials, Auditory / physiology*
  • Eyelids / physiology*
  • Humans
  • Male
  • Middle Aged
  • Schizophrenia / physiopathology*