[Eeglablist] Preprocessing Pipeline for Artifact Subspace Reconstruction

[Srinivas Kota]

Hello Christian and Makoto:

Would pipeline for preprocessing would be

Import Data and channel information
Highpass filter the data at 1HZ . Do I need to do this if I use
clean_rawdata? or should I use clean_artifacts with selected options? Any
recommendations?

Srinivas

On Thu, Nov 13, 2014 at 9:07 AM, Srinivas Kota <svkota at gmail.com> wrote:

> Hello Tarik:
>
> Thanks for the detailed information. The pipeline for ASR would be
>
> import data
>  remove line noise using clean line
> High-pass filter the data at 1Hz (Do we need to do this, because ASR
> includes a high pass filter arg_highpass?)
> Import channel information
> ASR
> Remove bad channels (channel replacement if necessary?)
> Re-reference the data to average
> Epoch data
> Reject epochs for cleaning
>
>
> Best
> Srinivas
>
>
>
>
>
> On Wed, Nov 12, 2014 at 8:52 PM, Tarik S Bel-Bahar <
> tarikbelbahar at gmail.com> wrote:
>
>> Hello Srinivas, hoping the below is of use to you, cheers!
>>
>> ASR is a cool tool! You may use it by installing it in eeglab as a
>> plugin, running it from the gui on a continuous EEG file, and then typing
>> eegh to get the eeglab history. Makoto might have something to add as he
>> made the page, but the below should be useful to you.
>>
>> You can also find out more at the powerpoint from Christian and Makoto at:
>> http://sccn.ucsd.edu/wiki/EEGLAB_Extensions
>>
>> You can also download the matlab functions from there, and review the
>> notes and examples given within the .m files. There is considerable
>> information there.
>>
>> The change in the preprocessing pipeline suggested on the webpage would
>> likely mean implementing ASR after importing channels.Because it removes
>> bad channels, removes bad data, and gives you cleaned data, it's likely you
>> can skip the other bad-channel and artifact-rejection steps. However, be
>> sure to review the data for yourself after ASR, as it may require more
>> cleaning, or adjustment of the parameters and running a second or different
>> pass of artifact rejection using the same or other techniques. (however,
>> the defaults work quite well for the methods mentioned at the very end of
>> the pipeline webpage).
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> On Tue, Nov 11, 2014 at 6:48 PM, Srinivas Kota <svkota at gmail.com> wrote:
>>
>>> I found this processing pipeline in EEGLAB wiki page.
>>>
>>> http://sccn.ucsd.edu/wiki/Preprocess_pipeline
>>>
>>> What would be the preprocessing pipeline, if I like to try ASR?
>>>
>>>
>>>
>>> Best,
>>> Srinivas
>>>
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>>
>
>
>
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