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EEG Channel Location Files

• Sample files sent to us in the following formats:

  EEGLAB ".loc" and ".txt",
  Polhemus ".elp",
  EGI ".spl" and ".xyz",
  Besa ".elp",
  Neuroscan ".map"

  EEGLAB can read all these file formats (except for Neuroscan ".map"). Share your location files!
• Neuroscan company web page with 32- and 64-channel headmodel files

• EGI ftp site with BESA-compatible location files. Complete 10-10 system correspondences for EGI's 64-, 128-, and 256-channel Nets

• Easy-cap electrode locations (click on the download panel)
  
  

For more about convention of electrode placement, refer to Robert Oostenveld's web page.

We have created software (in EEGLAB) to transform between spherical, 3-D cartesian and polar coordinates in a variety of file formats (see readlocs() function help). We will post more information here soon...