[Eeglablist] ASR algorithm settings for movement artefact removal from EEG

[Makoto Miyakoshi]

Dear Evyatar,

I don't see anything strange in the log. How long did it take?

Makoto

On Tue, Oct 6, 2015 at 11:10 PM, Evyatar.Arad at sheba.health.gov.il <
Evyatar.Arad at sheba.health.gov.il> wrote:

> Scanning for bad channels...
> clean_channel:   1/1, 0.0 minutes remaining.
> Finding a clean section of the data...
> Determining time window rejection thresholds...done.
> Keeping 45.7% (5 seconds) of the data.
> eeg_insertbound(): 4 boundary (break) events added.
> eeg_checkset note: upper time limit (xmax) adjusted so (xmax-xmin)*srate+1
> = number of frames
> Estimating calibration statistics; this may take a while...
> Determining per-component thresholds...done.
> Now doing final post-cleanup of the output.
> Determining time window rejection thresholds...done.
> Keeping 100.0% (10 seconds) of the data.
> Use vis_artifacts to compare the cleaned data to the original.
> Done.
> Creating a new ALLEEG dataset 3
>
> On Oct 7, 2015, at 8:59 AM, Evyatar Arad <evyatar.arad at sheba.health.gov.il>
> wrote:
>
> Thanks for the quick reply :)
>
> I thought so too. Could you help me in locating the log file?
>
> Regards,
> Evyatar
>
> On Oct 7, 2015, at 1:50 AM, Makoto Miyakoshi <mmiyakoshi at ucsd.edu> wrote:
>
> Dear Evyatar,
>
> Well that's strange. What does the log say (how much data are left in the
> initial clean portion selection etc)
>
> Makoto
>
> On Sun, Oct 4, 2015 at 5:36 AM, Evyatar.Arad at sheba.health.gov.il <
> Evyatar.Arad at sheba.health.gov.il> wrote:
>
>> Hello Miyakoshi,
>>
>> My name is Evyatar Arad and I’m a Biomedical engineer currently working
>> on movement artefact removal from an 32 electrodes EEG system.
>> I have installed the ASR extension to Matlab and I was wondering what are
>> the optimal parameters for the ASR algorithm.
>>
>> My current dataset is composed of a 30 channel EEG singal, 290 [s] in
>> length.
>> Running the algorithm in default setting yields the following result:
>>
>> *Pre-ASR, normalised signal:*
>> <No Filt.png>
>>
>> *Post-ASR, normalised signal:*
>>
>> It seems as though at best no change has occurred.
>>
>> Your recommendations will be beneficiary.
>>
>> Thanks in advance,
>> Evyatar Arad
>> <http://www.sheba.co.il/h/> <https://yashir.sheba.co.il/>
>> <http://www.sheba.co.il/sheba_movies> <https://twitter.com/sheba_>
>> <https://www.facebook.com/SHEBA.MEDICAL?ref=ts>
>>
>
>
>
> --
> Makoto Miyakoshi
> Swartz Center for Computational Neuroscience
> Institute for Neural Computation, University of California San Diego
>
>
>
>


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