[Eeglablist] Blinking noise reject on prefrontal electrodes

[Scott Makeig]

By 'the blinking noise' I take you to mean eyeblink artifacts. With only
two channels, spatial ICA decomposition can be of little use (though an
*advanced* exploration could be to apply multi-model AMICA decomposition
with many models). You will have to identify the blink events in the data
and remove them -- I might try to locate eyeblinks visually, then average
blink-locked epochs to create a time-locked eyeblink artifact template to
use for automated eyeblink detection and regression.

Scott Makeig

On Fri, May 1, 2020 at 7:47 AM Brigitte Aguilar Gonzales <
aguilarbrigitte277 at gmail.com> wrote:

> Hi all,
> I'm working on characterizing the EEG signal during tasks that involve
> attention. For this I've recorded EEG signals from prefrontal electrodes
> (Fp1 and Fp2), however the blinking noise is an important problem that I
> have not yet been able to solve, since I found that running ICA for this
> particular setup is not recommended, due to the small number of channels. I
> wanted to know if there is someone who is working with similar signals and
> who can guide me since I do not have enough experience working with only
> two electrodes. My goal is to be able to eliminate blinking noise online
> since I need this in the implementation of a BCI for cognitive
> rehabilitation.
>
> Thank you very much in advance for your attention and help.
>
> Brigitte Aguilar
> LIRINS, (Rehabilitation Engineering and Neuro-Sensorial Investigation
> Laboratory) Engineering School of the Universidad Nacional de Entre Ríos
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-- 
Scott Makeig, Research Scientist and Director, Swartz Center for
Computational Neuroscience, Institute for Neural Computation, University of
California San Diego, La Jolla CA 92093-0559, http://sccn.ucsd.edu/~scott