[FieldTrip] re-referencing EEG signals

"Jörn M. Horschig" jm.horschig at donders.ru.nl
Mon Jun 30 15:26:37 CEST 2014

Dear Hweeling,

re-referencing is a linear step and can be done at any time preceding 
any non-linear transformation, e.g. computing a power spectrum. So it 
depends on what type of preprocessing you have planned, but for the most 
usual preprocessing steps the answer is that it would not make any 
difference when exactly you are doing this.


On 6/30/2014 11:19 AM, Hwee Ling Lee wrote:
> Dear all,
> I was wondering if re-referencing of EEG signals should be done before 
> trial definition or after all the preprocessing have been done.
> Would it make a difference in terms of statistical analyses?
> Thanks.
> Best regards,
> Hweeling
> _______________________________________________
> fieldtrip mailing list
> fieldtrip at donders.ru.nl
> http://mailman.science.ru.nl/mailman/listinfo/fieldtrip

Jörn M. Horschig
PhD Student
Donders Institute for Brain, Cognition and Behaviour
Centre for Cognitive Neuroimaging
Radboud University Nijmegen
Neuronal Oscillations Group
FieldTrip Development Team

P.O. Box 9101
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E-Mail: jm.horschig at donders.ru.nl
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