[Eeglablist] ICA preprocessing and bipolar montage configuration

[Makoto Miyakoshi]

Dear Velu,

Suppose there are 4 scalp electrodes A B C D. Is your bipolar reference
configured as A-B and C-D, or A-B, B-C, and C-D? In the latter case, you
can re-reference back to a unipolar reference state, which solves the ICA
problem as well.

Makoto

On Wed, Jun 1, 2022 at 8:42 AM Velu Prabhakar Kumaravel <
velu.kumaravel at unitn.it> wrote:

> Dear EEGLABers,
>
> Does anyone know the effects of ICA preprocessing on EEG acquired using
> bipolar configuration?
> I tried on a few datasets and it looks like the decomposition is not
> effective. Classifying using ICLabel results in more number of "Other"
> category.
>
> Could someone provide insights on this?
>
> Best regards,
>
> Velu Prabhakar Kumaravel, Ph.D. Student
> Center for Mind/Brain Sciences,
> University of Trento, Italy
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