[Eeglablist] Marking EEG segments for rejection

[Enrico Fratto]

Dear Gin,

I do not know how to mark continuous stretches of data without rejecting
them, but I am sure that these option might exist.

However, if epoching the data is not a problem for you, you might divide
into 2s epochs the continuous EEG and then press "inspect/reject data by
eye" in the tools menu.

A window will appear and you will find an option like with "reject the
marked epochs". If you leave that box unselected, you will be free to
highlight the bad epochs for you future review without deleting them.
In this case, the bottom right button in the EEG scroll screen will be
"update marks".
These labels are saved in the dataset and you can even use them if, for
example, you wanted to apply them somewhere else.

I hope that this helps you


Enrico

On Sat, Feb 15, 2025, 15:40 Gin Estrella Cruz via eeglablist <
eeglablist at sccn.ucsd.edu> wrote:

> Dear EEGLAB community:
>
> I am having difficulty trying to simply mark instead of automatically
> deleting some "bad" segments from the plot/scroll window.  I would like to
> simply mark these segments as bad segments first, and then later on
> programmatically access and record the actual time intervals that I've
> marked, before I actually delete them.
>
> When I mark the bad segments and then click on the Reject button, EEGLAB
> prompts me regarding saving the modified data, and once I do, the window
> closes, and then I see that those segments have been deleted and I get a
> shorter length of the EEG data, consistent with the amount of time removed
> by those segments.
>
> I'd appreciate any help on this. Thanks!
>
> -Gin
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