Information for Researchers

Facilities & Techniques

• Testing for the ERP studies is conducted at the National Centre for Audiology at Western.
  
  
• Event-related encephalograms are recorded using a 128-channel electroencephalography (EEG) system (Electrical Geodesics Inc).
  
  
• ERPs are measured at 128 scalp sites (referenced to an average of all channels), plus vertical and horizontal electrooculogram sites.
  
  
• In each task, participants sit in a comfortable chair while the auditory stimuli are presented via E-Prime software (Psychology Software Tools), a research grade signal processing system (TDT System III), and insert earphones (Etymotic ER-3A).
  
  
• To encourage an awake and still state during acquisition, participants watch (but not listen to) a DVD movie projected on a computer screen at a comfortable viewing distance.

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