[Mne_analysis] is it possible to concatenate averaged fif-files it one single fif-file

[Matthias Schulz]

I guess you are right. I did not thought it through. Since the
fiducials and HPI coils stay at the some location between conditions
it should be fine.
Thank you, Matthias


On 6 April 2011 17:53, Daniel G Wakeman <dgwakeman at gmail.com> wrote:
> Hi Matthias,
>
> You only need one MEG-MRI alignment. You do not need to combine the averaged fif files (though if you want to this is simple using the MATLAB toolbox). The information in the headers about the head origin should be identical, so you can just calculate one and use it for all of the calculations.
>
> Good Luck!
> D
> On 2011 Apr 6, at 17:08 , Matthias Schulz wrote:
>
>> Hi there,
>>
>> i used mne_process_raw to average ERFs from different condition (e.g.
>> Standard, Deviants, MMNs) into separate fif-files.
>> Next i would like follow the MNE pipline to do Minimum-norm estimates.
>> As far as i understood i would have to do an MEG-MRI alignment for
>> each subject and each averaged fif-file at some point. Would it be
>> possible to concatenate the averaged fif-files into one single file
>> for each Subject? Such that i would only have to do the alignment step
>> once for each subject?
>> I assume that would be ok to do since the different conditions were
>> randomly presented during recording and saved in one file in the first
>> place.
>>
>> Thank you very much for your time, Matthias
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