[Eeglablist] pop_reref to exclude some channels for average reference

Makoto Miyakoshi mmiyakoshi at ucsd.edu
Tue Oct 6 15:42:14 PDT 2015


Dear Sue,

You are from April's lab?
Anyway, selecting such specific number for average referencing is tedious.
Consider using PREP Pipeline. It'll interpolate all bad channels so that
you can run average reference including all channels safely.
http://journal.frontiersin.org/article/10.3389/fninf.2015.00016/abstract

Makoto

On Tue, Sep 29, 2015 at 3:39 PM, Sue Peters <sp at suepeters.com> wrote:

> Dear EEGLab Users,
>
> I am using this function, pop-reref, for an average reference of 124
> channels.  However, I would like to exclude 16 of these channels from the
> average reference calculation. I have used the 'exclude' input to specify
> the exclusion of these channels:
>
> EEG = pop_reref( EEG, [], 'exclude', [17 43 48 49 56 63 68 73 81 88 94 99
> 107 113 119 120]);
> %16 channels removed leaving 108 for av ref
>
> I've also tried just selecting specifying the 108 channels directly:
>
>  EEG = pop_reref(EEG, [1:16 18:31 33:37 39:42 45:47 50:55 58:62 65:67
> 70:72 75:80 83:87 90:93 96:98 101:106 108:112 115:118 122:124]);
>
> But I'm not sure that either is working correctly, and am not sure how to
> confirm that the function is actually averaging the 108 channels, and using
> these as the reference.
>
> Any thoughts are welcome!
>
> Thanks,
>
>
> Sue Peters
> PhD Candidate
>
> Center for Molecular and Behavioral Neuroscience
> Rutgers University - Newark
> 197 University Avenue, Room 209
> Newark, New Jersey, 07102
> USA
>
> sp at suepeters.com
> mobile: 646-337-7025
> fax: 206-338-2972
>
> www.linkedin.com/in/suepeters
>
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-- 
Makoto Miyakoshi
Swartz Center for Computational Neuroscience
Institute for Neural Computation, University of California San Diego
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