[Mne_analysis] mne_process_raw: event extraction

Matti Hamalainen msh at nmr.mgh.harvard.edu
Tue Sep 25 15:18:15 EDT 2012
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Hi Reid,

Now I realize what the problem is. The name of the stim channel is STI101, not STI 101 (with space). Therefore, the correct option is

--digtrig STI101

The underscore in the channel name is by convention converted into space as hopefully told in the manual.

- Matti


On Sep 25, 2012, at 10:50 AM, Vancelette, Reid Vincent wrote:

> Hi group,
>  
> I have been trying to extract events from my raw data with the mne_process_raw command. I have changed the STI channel from STI 014 to STI101 per Matti’s instructions:
>  
> ‘mne_process_raw --raw %s/raw_data/%s_%s_raw.fif --eventsout %s/triggers/%s_%s.eve --digtrig STI_101’
>  
> and 0 events are extracted. I receive the following message:
>  
> 0 events found in /autofs/space/…/raw_data/MVS1_12_B8_raw-eve.fif
> Trigger channel : STI 101 max_event : 0
> 
> --- Saving events (leading edge) in text format to /autofs/space/…/triggers/MVS1_12_B8.eve ---
> 
> No events to save
>  
> I have looked into the raw fif files to check to see whether or not the triggers were recorded and they were. Is there something else that I need to do/define in order to extract the events successfully?
>  
> Thanks in advance again,
>  
> Reid
>  
>  
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---------

Matti Hamalainen, Ph.D.
Athinoula A. Martinos Center for Biomedical Imaging
Massachusetts General Hospital

msh at nmr.mgh.harvard.edu
mhamalainen at partners.org






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