[Eeglablist] Rereference

[Makoto Miyakoshi]

Dear Eric,

I have the same question for long time. In my case, because I run ICA and
remain in IC analysis and almost never come back to channels, I really
wonder if I need re-referencing at all.

I've heard Jason Palmer, who wrote AMICA for EEGLAB, say average reference
before ICA is necessary, but he did not give me a clear explanation for
that. Scott wanted to know it too, but we were interrupted at that time.
Next time I'll ask it to him (when I ever see him in the lab...)

Makoto

On Tue, Sep 30, 2014 at 2:44 PM, Eric HG <erichg2013 at gmail.com> wrote:

> Dear list,
>
> I have read the tutorial on the site and it says: "Converting data,
> before analysis, from fixed or common reference (for example, from a common
> earlobe or other channel reference) to 'average reference' is advocated by
> some researchers, particularly when the electrode montage covers nearly the
> whole head (as for some high-density recording systems)."
>
> I have data collected with a mastoid reference and I was wondering in
> which cases it would be considered best to rereference to the average? Are
> there any specific papers about rereferencing that anyone would recommend?
>
> Regards,
>
> Eric
>
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-- 
Makoto Miyakoshi
Swartz Center for Computational Neuroscience
Institute for Neural Computation, University of California San Diego
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