[Eeglablist] Change reference after ICA

[Joseph Dien]

Although there are different preferences, there’s nothing intrinsically wrong with using CAR during analysis and yes you can always rereference.

You may find these papers helpful:

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.
Dien, J. (2017). Best practices for repeated measures ANOVAs of ERP data: Reference, regional channels, and robust ANOVAs. Int J Psychophysiol, 111(1), 42–56. https://doi.org/10.1016/j.ijpsycho.2016.09.006 <https://doi.org/10.1016/j.ijpsycho.2016.09.006>

Joe

> On Feb 25, 2020, at 23:46, Haneen Alsuradi <haneen at nyu.edu> wrote:
> 
> Hi,
> 
> I had online reference of Fcz channel and I changed it to CAR during
> preprocessing. After changing reference to CAR, I performed ICA and removed
> blinks and muscle artifacts. I wish to perform ERP analysis. I am wondering
> is it ok to perform ERP analysis while having signals CAR referenced? I
> read some articles that recommend using T7 or T8 as references in case of
> ERP analysis. If so, can I re-reference at this point?
> 
> Will appreciate your feedback and insight!
> 
> Best
> Haneen
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Joseph Dien, PhD
Senior Research Scientist
Department of Human Development and Quantitative Methodology
University of Maryland, College Park
http://joedien.com