[Eeglablist] reference

[Makoto Miyakoshi]

Dear Fateme,

If you don't apply average reference, the channels near the reference will
have smaller amplitude relative to the channels far from the reference.
This changes visual impression of the waves, so some people say it is not
ideal. However, if you don't mind it, you can still use any arbitrary
channel as reference, particularly if the number of channels are limited
(then the zero-sum assumption of average reference under ideal condition
does not hold well).

Makoto

On Mon, Dec 5, 2016 at 9:16 AM, Fateme Hasanzade <f.hasanzadeh22 at gmail.com>
wrote:

> Hi
> I recorded EEG signals by Emotiv cap. Now in order to analyse the data in
> EEGLAB what reference must be chosen? the average which is EEGLAB default?
> I mean what is the benefit of doing this? is there any problem If I don't
> do this is
> I will appreciate if anyone can help me.
>
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-- 
Makoto Miyakoshi
Swartz Center for Computational Neuroscience
Institute for Neural Computation, University of California San Diego
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