[Eeglablist] visualization of rejmanual timepoints

[Agatha Lenartowicz]

For documentation purposes - Cedric - the code you provided won’t work (at least with 2022 versions). The mask creation line assumes that EEG.data and EEG2.data are the same size and can be subtracted to uncover the removed timepoints but this is not true. The rejection step modifies the size of the data (by removing windows of data) and thus the operation you provide won’t work.

al.


> On Jan 24, 2023, at 1:01 PM, Cedric Cannard <ccannard at protonmail.com> wrote:
> 
> Dear Agatha,
> 
> While I don't know about this previous feature, here is how you can 1) make a copy of your EEG dataset, 2) remove bad portions from that copy, 3) visualize the differences, and 4) remove these segments from original dataset if satisfied. 
> 
> EEG2 = EEG; % copy
> pop_eegplot(EEG2,1,1,1); % plot and remove bad segments manually
> vis_artifacts(EEG2,EEG); % compare (removed segments are in red)
> mask = sum(abs(EEG.data-EEG2.data),1) > 1e-10; % mask index of bad samples
> badData = reshape(find(diff([false mask false])),2,[])'; % reshape for pop_select function
> badData(:,2) = badData(:,2)-1; % fix latency
> cleanEEG = pop_select(EEG,'nopoint',badData); 
> 
> Hope this helps,
> 
> Cedric
> 
> 
> 
> ------- Original Message -------
> On Monday, January 23rd, 2023 at 10:07 AM, Agatha Lenartowicz <alenarto at g.ucla.edu <mailto:alenarto at g.ucla.edu>> wrote:
> 
> 
>> Hi all.
>> 
>> It used to be possible to select bad time windows via visual inspection (or otherwise) without actually REJECTing those time points. These would just be saved in EEG.reject.rejmanual. And they could later be viewed and modified.
>> 
>> In 2022 it looks like this ability to visual inspect rejection-marked epochs has been removed.
>> 
>> Is that correct? Is there a way to get this functionality back?
>> Thanks!
>> Agatha
>> 
>> 
>> 
>> 
>> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> 
>> Agatha Lenartowicz, Ph.D.
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>> 
>> 
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>> Department of Psychiatry and Biobehavioral Sciences
>> Brain Research Institute
>> 
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