[Mne_analysis] Requesting help for removing artifacts from Single-Channel EEG Signals

[VENKATA PHANIKRISHNA B]

        External Email - Use Caution        

Hi, thank you for the prompt response.
I want to remove internal artifacts related to head movement, eye movement,
and muscle movement.
How to check whether the EEG data has artifacts or not?
As per my knowledge by plotting the EEG data, at some time amplitude is
more (variation) then considers it as an artifact.
Apart from this, is there any way to find the artifacts from the EEG signal?
How to remove artifacts from single-channel EEG?.

 I am looking forward to a positive response from you.
 THANK YOU SO MUCH FOR YOUR TIME AND CONSIDERATION




On Mon, Dec 10, 2018 at 7:47 PM Alexandre Gramfort <
alexandre.gramfort at inria.fr> wrote:

>         External Email - Use Caution
>
> hi,
>
> ICA on 1 channel does not make sense. ICA applies an unmixing matrix
> to data so if you have 1 channel you're doing a dot product with a float.
>
> There exist underdetermined ICA versions but it's not implemented
> in MNE and not common on EEG/MEG data.
>
> What artifacts do you want to remove?
>
> HTH
> Alex
>
>
> On Mon, Dec 10, 2018 at 2:38 PM VENKATA PHANIKRISHNA B <
> b.phanikrishna at gmail.com> wrote:
>
>>         External Email - Use Caution
>>
>> Hi, everyone.
>> I try to do remove artifacts from free available EEG data (from
>> PHYSIONET). For entire dataset, it working well by using the following code.
>> from mne.preprocessing import ICA, create_ecg_epochs
>> raw=mne.io.read_raw_edf(r'C:\Users\shash\OneDrive\Desktop\desktop\SC4001E0-PSG.edf',
>> preload=True)
>> raw_tmp = raw.copy()
>> ica = mne.preprocessing.ICA(method="extended-infomax", random_state=1)
>> ica.fit(raw_tmp)
>>
>> This procedure working only for ".edf" format file
>> Same thing I try to do it for single channel data that were taken into
>> another variable (let say in another format file like excel or text) I am
>> getting a divide by zero error.
>>
>> Can anyone remove artifacts from Single-Channel EEG Signals?
>> Please provide help for removing artifacts for attached EEG data file.
>> Properties of ATTACHED file:
>> Data: EEG amplitude
>> number of channels: 1 i.e.,'EEGFpzCz'
>> sampling frequency: 100HZ.
>> Epochs =30seconds
>> Total samples or amplitudes=30*100=300
>>
>>   I am looking forward to a positive response from you.
>>  THANK YOU SO MUCH FOR YOUR TIME AND CONSIDERATION
>>
>>
>>
>>
>>
>> --
>> ************************
>> thanks
>>
>>
>> *VENKATA PHANIKRISHNA B*
>> 9908261261
>> _______________________________________________
>> Mne_analysis mailing list
>> Mne_analysis at nmr.mgh.harvard.edu
>> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/mne_analysis
>
> _______________________________________________
> Mne_analysis mailing list
> Mne_analysis at nmr.mgh.harvard.edu
> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/mne_analysis



-- 
************************
thanks


*VENKATA PHANIKRISHNA B*
9908261261
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://mail.nmr.mgh.harvard.edu/pipermail/mne_analysis/attachments/20181211/d9d4931c/attachment-0001.html