[Eeglablist] problem in eeg artifact removal (eeglablist Digest, Vol 104, Issue 23)

[Nick Wan]

I would start from the raw data and remove rare artifacts by hand, then ICA
for other artifacts.

This is a quick tutorial from Makeig:
http://sccn.ucsd.edu/wiki/Quick_Rejection_Tutorial

In a lab I worked in, we would filter raw data first, then reject rare
muscle artifacts and any drift by hand, then ICA and reject stereotyped
artifacts.



On Fri, Jun 21, 2013 at 1:00 PM, <eeglablist-request at sccn.ucsd.edu> wrote:

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> problem in eeg artifact removal (m.alimohammadi22 at yahoo.com)
>
>
> ---------- Forwarded message ----------
> From: m.alimohammadi22 at yahoo.com
> To: "eeglablist at sccn.ucsd.edu" <eeglablist at sccn.ucsd.edu>
> Cc:
> Date: Thu, 20 Jun 2013 12:20:05 -0700 (PDT)
> Subject: [Eeglablist] problem in eeg artifact removal
>
>
>
> hi.
>
> i used graz data for imagery movement.i extract AR(21 order) features for
> this data. for final i have one .mat file(matrix 140*44).140 show number of
> trial and 44 achieve based on AR.
> i used adjust plugin for artifact removal(eye blink,....).ADJUST contain
> there steps(fig is uploaded in "
> http://tinypic.com/view.php?pic=3478f15&s=5"),one step is ICA.in this
> step,i follow different problem. first, i follow error massage "error in
> function compute_GD_feat" and this explanation:"attempted to access
> pos(1,:);index out of bands because size(pos)=[0,0]" .this error is
> resolved by setting time point per epoch to 140.i know it is true or not.
> after that i follow error( fig is uploaded in "
> http://tinypic.com/view.php?pic=mceohs&s=5" )
> really i need someone help me.it is important for me. i want to remove
> eeg artifacts.it is not important for me which method is used. can you
> help me?
> thanks
>
>
>
>
>
>
>
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-- 
Nick Wan
Graduate Student

Multisensory Cognition Lab
Department of Psychology
Utah State University

Phone: 435-554-8788
Blog: truebra.in
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