[Mne_analysis] ctf2mne

[Daniel G. Wakeman]

Hi Kambiz,

I'm not sure about your first question, and I suspect it is due to  
CTF having different sensor names (why do you think this is a  
problem?), but the others have simple answers.

1-3 are all because STI014 is not your trigger channel name. You can  
use MNE_TRIGGER_CH_NAME to set the name to what your trigger is  
(assuming you are using MNE_2.6.x). See section 4.2.1 for more  
details. Message 2 will always occur on first opening of a file.

Dan


On 16 Jul 2009, at 21:04, Kambiz Tavabi wrote:

> Dear forum:
> I have converted a CTF dataset to fif format using ctf2mne without  
> any error in the verbose call.
> However, when viewing the resulting fif dataset in mne_browse_raw I  
> cannot see the data unless I use the selection dialog to select the  
> MEG channels which are appended with -3907. I am not sure why this  
> is and what it means?
> Also I encounter some information in the command window while using  
> mne_browse_raw that is disconcerting:
> (1) 0 events found in dataset.fif
> (2) no ds-eve.fif file found
> (3) Trigger channel : STI 014 max_event : 0
> Concerning  messages 1 & 3 I assume that no events are found  
> because digital triggers were not delivered on ch. STI 014, but  
> rather on UPPT001. My first question is how to change the stim ch  
> in MNE (i.e. have program look on UPPT001 for digital triggers)? I  
> also assume message 2 is related to the trigger channel issue,  
> since the mne_process_ raw ds.fif  also runs without error apart  
> from the output line 0 event found in data set. So, how do I get  
> around this issue?
>
> Thanks in advance
> Kambiz
>
> __________________________________________________________
> Kambiz Tavabi, PhD
> Post-Doctoral Fellow
> Biomagnetic Imaging Laboratory
> Children's Hospital of Philadelphia
> Philadelphia, PA 19104
>
> Tel.: +1 (267) 426-0302
> email: tavabik at email.chop.edu
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