[Eeglablist] choice of reference

[Angel Tabullo]

Stephen, Lisandro and David: 

Many thanks for your prompt answers, you all have been very helpful!




________________________________
 De: Stephen Politzer-Ahles <politzerahless at gmail.com>
Para: Angel Tabullo <angeltabullo at yahoo.com> 
CC: "eeglablist at sccn.ucsd.edu" <eeglablist at sccn.ucsd.edu> 
Enviado: Martes, 12 de junio, 2012 9:53 P.M.
Asunto: Re: [Eeglablist] choice of reference
 

Hi Angel,
 
Steve Luck's book An Introduction to the Event-related potentials method has a lot of information on references and the consequences of  the reference you choose. A common issue with average reference is that it's best when you have a high-density cap with many channels, so it may not be a good reference to use with a 19-channel dataset. (I don't know if the amount of noise matters particularly for reference, but I don't have any experience myself using average reference--since I've only worked with low-density caps, I've never had a chance to use average reference).
 
Best,
Steve


On Tue, Jun 12, 2012 at 11:36 AM, Angel Tabullo <angeltabullo at yahoo.com> wrote:

Hello everyone! I wanted to ask if there's an advantage in using average reference over linked mastoids or earlobes when you are working with 19 channels and considerable levels of noise. Furthermore: can reference affect the SNR of an ERP? 
>
>
>Thanks again for your attention and patience.
>
>Angel Tabullo
>_______________________________________________
>Eeglablist page: http://sccn.ucsd.edu/eeglab/eeglabmail.html
>To unsubscribe, send an empty email to eeglablist-unsubscribe at sccn.ucsd.edu
>For digest mode, send an email with the subject "set digest mime" to eeglablist-request at sccn.ucsd.edu
>


-- 
Stephen Politzer-Ahles
University of Kansas
Linguistics Department
http://www.linguistics.ku.edu/
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://sccn.ucsd.edu/pipermail/eeglablist/attachments/20120612/1b3c1f41/attachment.html>