[Eeglablist] Interpolate 8 channel montage

[Kavanaugh, Brian]

Zaeem,

This is quite useful, thank you very much!

Brian

On Mon, Jul 20, 2020 at 12:17 PM Zaeem Hadi <zaeemhadi at ymail.com> wrote:

> Hi Brian,
>
> I have been working with 8 channel dataset. However, I have avoided using
> the clean_rawdata plugin. The reason being the eye blinks, which are quite
> high in amplitude and also present in other channels to some degree. And
> thus clean_rawdata would almost always reject 2 or 3 channels. And
> interpolating so much data on just 8 channels wouldn't make sense. But if
> you have relatively clean data, you might be able to use it.
>
> To avoid that, I am using the pop_eegthresh(ALLEEG) function to
> semi-automatically reject epochs based on amplitude thresholding. For some
> reason, it is not available through GUI.
>
> That being said, I have interpolated some channels in my data due to
> excessive noise at the Alpha frequency range, but then I reduced the number
> of Independent components being determined using 'pca' option in infomax
> ICA, as suggested by Makoto in his pre-processing pipeline.
>
> Kind Regards,
>
> Zaeem Hadi
>
> Brain and Vestibular Group
> Imperial College London
> On Monday, July 20, 2020, 10:40:00 AM GMT+1, Kavanaugh, Brian <
> brian_kavanaugh at brown.edu> wrote:
>
>
> Hi everyone,
>
> We are hoping to analyze a previously collected dataset that used an 8
> channel montage. Does anyone have any experience analyzing such a small
> amount of electrodes? We are specifically curious about channel
> interpolation options if channels are removed via clean_rawdata. Can we
> follow a similar approach that we use for 32/64 channel data? Thanks
> everyone!
>
> Brian
>
> --
> Brian Kavanaugh, PsyD.
> Pediatric Neuropsychologist, E. P. Bradley Hospital/Rhode Island Hospital
> Assistant Professor (Research), Warren Alpert Medical School of Brown
> University
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-- 
Brian Kavanaugh, PsyD.
Pediatric Neuropsychologist, E. P. Bradley Hospital/Rhode Island Hospital
Assistant Professor (Research), Warren Alpert Medical School of Brown
University