[Eeglablist] Hi, list: help with muscular artifacts

[Makoto Miyakoshi]

Dear Srinivas,

Input for clean_rawdata should be EEGLAB data structure 'EEG' which
contains not only data vector but also channel info, event info, etc.

Makoto


On Wed, Jul 2, 2014 at 9:17 AM, Srinivas Kota <svkota at gmail.com> wrote:

> I received the following errors when I used clean_rawdata,
> clean_artifacts. My data is array is bandpass filtered  with no DC
> component.
>
> EEG = clean_rawdata(data, 5, [0.25 0.75], 0.45, 5, 0.25);
>
> my data is a 257 by 77624 array. I received this warning
>
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> * Attempt to reference field of non-structure array. Error in
> clean_flatlines (line 46) removed_channels = false(1,signal.nbchan); Error
> in clean_artifacts (line 177)     EEG = clean_flatlines(EEG,flatline_crit);
> end Error in clean_rawdata (line 76) cleanEEG = clean_artifacts(EEG,
> 'FlatlineCriterion', arg_flatline,... Error in check_cleanrawdata (line 14)
> EEG = clean_rawdata(data(1:256,:), 5, [0.25 0.75], 0.45, 5, 0.25*
>
> I also tried this
> EEG1 = clean_artifacts(data)
>
>
>
>
>
>
>
> *Attempt to reference field of non-structure array. Error in
> clean_flatlines (line 46) removed_channels = false(1,signal.nbchan); Error
> in clean_artifacts (line 177)     EEG = clean_flatlines(EEG,flatline_crit);
> end*
>
>
>
>
> Best,
> Srini
>
>
> On Mon, Jun 16, 2014 at 1:54 PM, Makoto Miyakoshi <mmiyakoshi at ucsd.edu>
> wrote:
>
>> Dear Gustavo,
>>
>> If you are looking for the online solution, Christian Kothe wrote a
>> solution for it. It's implemented in BCILAB.
>> http://sccn.ucsd.edu/wiki/BCILAB
>>
>> If you are looking for the offline solution, the same solution (i.e.
>> using artifact-subspace reconstruction method) is available as a plugin
>> 'clean_rawdata()' from here.
>> http://sccn.ucsd.edu/wiki/Plugin_list_process
>>
>> Our lab has several researchers interested in online EEG processes, EEG
>> during action, music, and dancing. We would love to hear more about what
>> you do.
>>
>> Makoto
>>
>>
>>
>> On Thu, Jun 5, 2014 at 10:33 PM, Gustavo Sol <gustavosol at gmail.com>
>> wrote:
>>
>>> Hi, dear list, I'm new in this field, in fact I'm an artist that is
>>> trying understand the performance on the stage using the EEG technique. The
>>> actor's work is an activity that have much effort and muscular presence. I
>>> need filter it all.
>>> I read the paper "Removal of Movement Artifact from High-Density EEG
>>> Recorded During Walking and Running", by Joseph T. Gwin, Klaus Gramann,
>>> Scott Makeig, Daniel P. Ferris, but I didn't get much.
>>>  From: <
>>> http://jn.physiology.org/content/early/2010/04/21/jn.00105.2010.full-text.pdf+html
>>> >
>>> Since this paper was written in 2010, I would like to know if this
>>> methods are already implemented in EEGLab in a automatic way, or if exist
>>> other routines, templates-methods and protocols that are so efficient, but
>>> easier than what was explained there.
>>>
>>> Thanks a lot,
>>> Gustavo
>>>
>>> --
>>> http://www.facebook.com/gustavo.sol.77
>>> vídeo book - http://gustavosol.blogspot.com
>>>
>>> Gustavo Sol
>>> 011-9614-6692
>>>
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>>
>>
>>
>> --
>> Makoto Miyakoshi
>> Swartz Center for Computational Neuroscience
>> Institute for Neural Computation, University of California San Diego
>>
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>
>
>
> --
>
> ***********************************************************
> Srinivas Kota, Ph.D
> Research Scientist
> Movement and Neurosciences Center
> Institute for Rehabilitation Science and Engineering
> Madonna Rehabilitation Hospital
> 5401 South St, Lincoln, NE 68506
> Email: svkota at gmail.com
> Ph:  (618) 319-0471 (cell)
> www.madonna.org/research_institute/index.html
> <https://owa.madonna.org/owa/redir.aspx?C=RNnR5lrQvEmYU7lVtl6kLHIjwe3PiNAI8ouI90lD2Vnn4niuQ5QMBdLYDKmByFhfb525xS5XXT8.&URL=http%3a%2f%2fwww.madonna.org%2fresearch_institute%2findex.html>
> ***********************************************************
>



-- 
Makoto Miyakoshi
Swartz Center for Computational Neuroscience
Institute for Neural Computation, University of California San Diego
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