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

[Makoto Miyakoshi]

Oh that's true. Are you sure that you provided full-length continuous data?

On Wed, Oct 7, 2015 at 11:30 PM, Evyatar.Arad at sheba.health.gov.il <
Evyatar.Arad at sheba.health.gov.il> wrote:

> Makoto,
>
> It too a few (<10) seconds.
> The entire segment cleaned is 9 [s] long.
>
> Best,
> Evyatar
>
> On Oct 8, 2015, at 1:23 AM, Makoto Miyakoshi <mmiyakoshi at ucsd.edu> wrote:
>
> 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
>
>
>


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