[Eeglablist] fieldtrip2eeglab Channel Locations, Rereference

[Makoto Miyakoshi]

Dear Tim,

Sorry for the trouble.
Just a suggestion for a workaround, it seems possible to copy the denoised
time series data matrix from ft_data1 to EEG.data. Have you tried that?

Makoto

On Mon, Feb 28, 2022 at 12:39 PM Redepenning, Tim via eeglablist <
eeglablist at sccn.ucsd.edu> wrote:

> Dear list members,
>
> As a matlab beginner I have been trying to set up a pre-processing
> pipeline with EEGlab.
> To remove line noise, I found the spectrum interpolation of the fieldtrip
> toolbox to work well. So, my best idea was to transform my partly
> pre-processed (re-reference, chanlocs, baseline removal) set-file to
> fieldtrip, use the interpolation and transform it back.
> Unfortunately, channel locations and information about rereference get
> lost in the process. Am I making a mistake or is it not possible to keep
> this information? In that case what would be the solution - removing the
> line noise before all the other pre-processing steps?
>
>
> Fsample = ALLEEG.srate;
> data_path = 'D:\EEG_Dok\Neckercube\Pilot\VP09\';
> cfg = [];
> cfg.dataset = 'D:\EEG_Dok\Neckercube\Pilot\VP09\VP09_RR_base.set';
> ft_data1 = ft_preprocessing(cfg);
> ft_data1.trial{1,1} = ft_preproc_dftfilter(ft_data1.trial{1,1}, Fsample,
> 50, 'dftreplace','neighbour','dftbandwidth',2,'dftneighbourwidth',1);
> eeglab_data = fieldtrip2eeglab(ft_data1);
> EEG = pop_saveset(eeglab_data,
> 'filename','VP09_RR_base_LNR.set','filepath',data_path);
> EEG.setname = 'VP09_RR_base_LNR';
> eeglab redraw
>
>
>
> Best wishes
>
> Tim Redepenning
>
>
> PhD Student | "Motor Control and Training" - Research Group
> Faculty of Psychology and Sports Science
> Bielefeld University | Cognitive Interaction Technology - Center of
> Excellence (CITEC)
> 33501 Bielefeld
> Germany
>
> Room: CITEC-1.411 | Phone: +49-(0)521-106-5129
> E-Mail: tim.redepenning at uni-bielefeld.de<mailto:
> tim.redepenning at uni-bielefeld.de>
>
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