[Eeglablist] fmrib pas

[Makoto Miyakoshi]

Dear Joseph and Arno,

I found Joseph's email address to contact for fMRIb, and also noticed that
the version number is 2.0 (I noticed it quite a while ago). Joseph, are you
the right person to ask about this question? If not, please excuse me.

Makoto

On Tue, Jul 21, 2015 at 12:18 PM, basile pinsard <basile.pinsard at gmail.com>
wrote:

> Hi EEGlab fmrib plugin developer,
>
> I am now looking at the fmrib pulse artifact correction.
>
> It seems that the function takes EEG structure and is going to apply
> correction to all channels, including ECG if not removed, if I am right. As
> they are processed independently I suppose that it doesn't matter to do
> that, except that it might destroy ECG.
>
> In fact, I wonder if it really corrects all the channels, as in the code
> of fmrib_pas line 170, the for loops from channels 1 to channels-2, while
> for the other methods it goes through all the channels.
> Fitted artifact is then zero for the last 2 channels.
> Is there any specific reason for that? Was that because last 2 were ECG
> channels in your configuration?
>
> My other question is about qrs peaks, once detected (and corrected with
> qrscorrect), there are duplicates events at the same time. I wonder if it
> could cause problems during bcg correction.
> I am also trying to further correct for false positives and negatives as
> some RR intervals are to high or low.
>
> Thanks for you insight on these questions.
>
> basile
>
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-- 
Makoto Miyakoshi
Swartz Center for Computational Neuroscience
Institute for Neural Computation, University of California San Diego
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