[Eeglablist] AMICA to clean eye blinks on 8-channel EEG

[Makoto Miyakoshi]

Dear Ke,

You can run ASR without changing the final data length. Just disable the
final window rejection by entering -1. I sometimes do that when I don't
mess up event marker latencies etc..

Makoto

On Fri, Jul 1, 2022 at 2:00 PM liao ke <kekeliao at gmail.com> wrote:

> Dear All,
>
> I have a problem to use AMICA to clean eye blinks on 8-channel EEG and want
> to get your help.
>
> The EEG is continuous data ~10 min. There are many eyeblinks on frontal
> channels like Fp1 & Fpz. AMICA can separate eye blink IC component and Fp1
> & Fpz are well cleaned after removing the eye IC. But it creates many
> eyeblink-like artifacts on other channels like Oz & Pz at the time when the
> original blinks exist. It looks like when removing the blinks, those
> channels subtract the blinks and therefore create blink-like negative
> peaks.
>
> What's the best way to clean the eyeblinks on this continuous EEG data?
> Since we don't want to get any data segment removed, we don't use
> Clean_rawdata() and ASR to remove blinks.
>
> Is there other tool to clean blinks for continuous EEG ? My
> colleague suggests to use Gratton algorithm but it looks only works for
> epoch data.
>
> Thank you very much for your help!
>
> Best,
> Ke
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