[Mne_analysis] selecting epochs to use in compute_proj_eog

[Dan McCloy]

Hi Boris,

You can add the projector manually using something like this:

ssp_blink_proj = mne.compute_proj_epochs(blink_epochs, n_grad=0, n_mag=0,
                                         n_eeg=2, desc_prefix=None,
verbose=None)
raw = raw.add_proj(ssp_blink_proj)

Here "blink_epochs" is your manually curated epochs object, and "raw" is
the raw data you want to apply the projector to.  n_grad and n_mag are set
to zero since it's EEG-only data.

-- dan

Daniel McCloy
http://dan.mccloy.info/
Postdoctoral Research Associate
Institute for Learning and Brain Sciences
University of Washington



On Mon, Sep 25, 2017 at 10:59 AM, Boris BURLE <boris.burle at univ-amu.fr>
wrote:

> Dear list,
>
>
> I'm currently trying to correct EOG artifacts on EEG data. To do so, I'm
> using "compute_proj_eog". This function first detects where EOG
> artifacts are, by using "find_eog_events". However, in some datasets,
> "find_eog_events" clearly picks segments that are not EOG. Using
> "create_eog_epochs" and plotting the resulting epochs, one can select
> which ones  are really EOG artifacts and save them in the epoch object.
> But  how can we indicate to "compute_proj_eog" that it should only use
> these ones for later correction?   Indeed, "compute_proj_eog" re-run
> "find_eog_events", and hence ends-up with all the original segments,
> including the ones not corresponding to EOG artifacts.
>
> Is there a way to tell "compute_proj_eog" which segment it should take
> into account to build the projector?
>
>
>      Thank you in advance for your help!!
>
>          Best,
>
>              Boris.
>
> _______________________________________________
> Mne_analysis mailing list
> Mne_analysis at nmr.mgh.harvard.edu
> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/mne_analysis
>
>
> The information in this e-mail is intended only for the person to whom it
> is
> addressed. If you believe this e-mail was sent to you in error and the
> e-mail
> contains patient information, please contact the Partners Compliance
> HelpLine at
> http://www.partners.org/complianceline . If the e-mail was sent to you in
> error
> but does not contain patient information, please contact the sender and
> properly
> dispose of the e-mail.
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://mail.nmr.mgh.harvard.edu/pipermail/mne_analysis/attachments/20170925/796ebb16/attachment.html