[Eeglablist] CleanLine plugin not removing 60hz noise?

[Makoto Miyakoshi]

Dear Charisse,

The current CleanLine plugins does not do the job due to a bug. See below
for validation and solution.
https://sccn.ucsd.edu/wiki/Makoto's_preprocessing_pipeline#Validation_.2804.2F25.2F2020_added.29

https://sccn.ucsd.edu/wiki/Makoto's_useful_EEGLAB_code#Example_of_batch_code_to_preprocess_multiple_subjects_.2804.2F25.2F2020_updated.29

In short, use cleanLineNoise() included in Prep Pipeline.

Makoto

On Tue, Jul 14, 2020 at 2:40 AM Charisse Pickron <cpickron at umn.edu> wrote:

> Hi All,
> I've been doing a bit of reading about using the CleanLine plugin, the
> benefits of this over say bandpass and notch filter. However I'm finding
> that my data does not seem to be "cleaned" after running this plugin.
> *EEGLab version: v2019.1
> *Data: Collected on 128 EGI Hydrocel net
> *Data is continuous, .1hz highpass filter, large sections of bad data have
> been rejected, and it has been re-referenced to the Average Referenced
> PRIOR to submitting it to CleanLine.
>                 *I plan to run ICA later in the pipeline and because I
> don't have quite enough data to epoch before ICA (based on EEGLab
> suggestions) until after ICA, which is why CleanLine is run on continuous
> data. However open to other input.
>
> Looking at the spectral map (Plots >  Channel spectra map) I see a large
> 60hz spike and with closer inspection the window is about 58:62hz.
> I've tried to be diligent following different past EEGLab threads about
> CleanLine and see that CleaLine doesn't work for some data based on the
> type of LineNoise. I've followed some of the Tips found in the readme
> documents of CleanLine, but not seeing a clear difference. My tentative
> plan is to notch filter 58:62Hz.
>
> *Below is some text that comes with the output as CleanLine is running, not
> sure if this is informative for anyone to help understand why CleanLine
> doesn't seem to be working:
> Cleaning Chan 1...
> Computing spectral power...
> Average noise reduction: 60.06 Hz: 10.75 dB
> Cleaning Chan 2...
> Computing spectral power...
> Average noise reduction: 60.06 Hz: 10.59 dB
> ...
> Cleaning Chan 12...
> Computing spectral power...
> Average noise reduction: 60.06 Hz: 10.68 dB
>
> Many Thanks!
> -Charisse
> --
> Charisse B. Pickron, Ph.D.
> President's Postdoctoral Fellow | Institute of Child Development |
> icd.umn.edu
> University of Minnesota | umn.edu
> Pronouns: She/Her/Hers
> cpickron at umn.edu
> _______________________________________________
> Eeglablist page: http://sccn.ucsd.edu/eeglab/eeglabmail.html
> To unsubscribe, send an empty email to
> eeglablist-unsubscribe at sccn.ucsd.edu
> For digest mode, send an email with the subject "set digest mime" to
> eeglablist-request at sccn.ucsd.edu
>