[Eeglablist] changing the reference electrode for use the SIFT toolbox

[Joseph Dien]

It’s certainly valid to rereference voltage data.  They are all mathematically interchangeable, differing only in the assumptions about the (unknown) zero voltage level.

See my 1998 paper for more information about references.

Dien, J. (1998). Issues in the application of the average reference: Review, critiques, and recommendations. Behavior Research Methods, Instruments, and Computers, 30(1), 34-43.

Cheers!

Joe




On Nov 8, 2013, at 5:20 PM, jfochoaster . <jfochoaster at GMAIL.COM> wrote:

> Dear EEG experts,
> 
> I have a lot of eeg data with the average as reference. This data comes originally with one electrode near to CZ as reference
> 
> Is valid re-reference the data to linked mastoid? 
> 
> This is because I am using the SIFT toolbox over the channels and the DFT measure is applied over eeg data with linked mastoid as reference
> 
> If I use components instead of channels, I can forget the reference?
> 
> Thanks in advance
> 
> -- 
> John Ochoa
> Docente de Bioingeniería
> Universidad de Antioquia
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--------------------------------------------------------------------------------

Joseph Dien,
Senior Research Scientist
Maryland Neuroimaging Center
University of Maryland 

E-mail: jdien07 at mac.com
Phone: 202-297-8117
http://joedien.com














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