[Mne_analysis] eeglab data in MNE

Stephen Politzer-Ahles politzerahless at gmail.com
Fri Apr 27 22:09:26 EDT 2012
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Hi James,

Did you try loading a channel layout from the Adjust menu? In the past I
had a similar experience as you (imported data successfully but couldn't
see it in mne_browse_raw), and it turned out I just had to choose a channel
layout for viewing.

Best,
Steve

On Fri, Apr 27, 2012 at 4:56 PM, James Thompson <jim.thommo at gmail.com>wrote:

> Hi All,
> I have an eeglab epoched EEG dataset that I would like to analyze
> using MNE. I can export my eeglab *.set file as a *.EDF file and
> convert it to fif using mne_edf2fiff easily enough. I changed channel
> names, trigger to STI 014. I can also make an event.txt file. However,
> when I load the fif file into mne_browse_raw I get no data and no
> channels displayed (same if I load it into mne_analyze). The time
> information displayed in mne_browse_raw is correct, and the event list
> shows the events just fine. Just no data. I can load the fif file into
> matlab using fiff_setup_read_raw and fiff_read_raw_segment and the
> data looks fine in matlab. Same thing happens when it is an un-epoched
> file.
>
> I have two questions:
> 1. Am I doing it wrong with mne_browse_raw? If so, does anyone have
> any suggestions. I've copied what is sent to the terminal when I load
> the fif file below.
>
> 2. Given that I can read the file in fine, I should be able to write
> it out using fiff_write_int, correct? I tried using
> mne_ex_read_write_raw to read/write the file to see if that would make
> something mne_browse_raw would like. It made a data file just fine,
> but still nada.
>
> Thanks in advance,
> Jim
>
> ## First, loading in the *.fif file
>
> --- Opening /home/jim/Desktop/Studies/EEG/jt_03/jt_03new_raw.fif ---
>
> No compensation data in
> /home/jim/Desktop/Studies/EEG/jt_03/jt_03new_raw.fif
> Compensation in file : uncompensated
> Setting up compensation data...
>        No compensation set. Nothing more to do.
> No compensation was requested.
> A new compensation value (uncompensated) was assigned to 0 MEG channels.
> No SSS data in /home/jim/Desktop/Studies/EEG/jt_03/jt_03new_raw.fif
> 0 bad channels read from
> /home/jim/Desktop/Studies/EEG/jt_03/jt_03new_raw.fif
> filter :   0.000 ...   40.0 Hz   bins : 0 ... 655 of 4097 hpw : 3 lpw : 41
> Highpass filter will work as specified.
> filter :   0.000 ...   40.0 Hz   bins : 0 ... 655 of 4097 hpw : 3 lpw : 41
> Highpass filter will work as specified.
> Initial dc offsets determined
> Raw data file /home/jim/Desktop/Studies/EEG/jt_03/jt_03new_raw.fif:
>        nchan  = 119
>        nsamp  = 24000
>        sfreq  = 500.000  Hz
>        length = 48.000   sec
> 0 events found in /home/jim/Desktop/Studies/EEG/jt_03/jt_03new_raw-eve.fif
> Trigger channel : STI 014 max_event : 0
> No projection operator found in
> /home/jim/Desktop/Studies/EEG/jt_03/jt_03new_raw.fif
> Average EEG reference projection added.
>
> --- Projection status ---
>
>        # 1 : Average EEG reference : 1 vecs : 116 chs EEG active
>
> --- Complete ---
>
>
>
> ## Now, the events file
>
> Event file is in the new format
> Loaded 7 events
> Replace existing events
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-- 
Stephen Politzer-Ahles
University of Kansas
Linguistics Department
http://www.linguistics.ku.edu/
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