Fwd: [FIELDTRIP] source analysis example images

Brian Roach Brian.Roach at YALE.EDU
Mon May 7 15:04:55 CEST 2007


>
>fieldTrip users,
>
>I've run a source analysis using the DICS method and EEG data.  Here is
>the code the leads me to the attached sourceplot results:
>
>cfg.output     = 'powandcsd';
>cfg.method     = 'mtmfft';
>cfg.tapsmofrq  = 2;
>cfg.foilim     = [80 81];
>freq = freqanalysis(cfg, data);
>cfg.method = 'dics';
>cfg.frequency = 80;
>cfg.hdmfile = '/home/bjr39/FTsource/vol.mat';
>cfg.resolution = 2;
>cfg.projectnoise= 'yes';
>tic;source = sourceanalysis(cfg, freq);toc
>cfg.mriunits = 'mm';
>cfg.sourceunits = 'mm';
>cfg.funparameter  = 'nai';
>sourceD = sourcedescriptives([], source);
>mriFile = '/home/bjr39/FTsource/t1_icbm_normal_1mm_pn0_rf0.mnc';
>tic; sourceF = source2full(sourceD); toc
>tic; sourceInterp = sourceinterpolate(cfg, sourceF, mriFile); toc
>sourceplot(cfg, sourceInterp)
>
>I am wondering if this type of result seems reasonable (if it looks as
>though I have not made any huge mistakes)?  If so, I would run another
>condition for the same subject and try to use the statistics functions.
>
>Also, what does this color scale describe?  What are its units?
>
>thanks,
>Brian
>
>
>

----------------------------------
The aim of this list is to facilitate the discussion between users of the FieldTrip  toolbox, to share experiences and to discuss new ideas for MEG and EEG analysis. See also http://listserv.surfnet.nl/archives/fieldtrip.html and http://www.ru.nl/fcdonders/fieldtrip.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: naiOutput2.png
Type: application/octet-stream
Size: 98772 bytes
Desc: not available
URL: <http://mailman.science.ru.nl/pipermail/fieldtrip/attachments/20070507/aa68467b/attachment-0002.obj>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: naiOutput.png
Type: application/octet-stream
Size: 106585 bytes
Desc: not available
URL: <http://mailman.science.ru.nl/pipermail/fieldtrip/attachments/20070507/aa68467b/attachment-0003.obj>
-------------- next part --------------

----------------------------------
The aim of this list is to facilitate the discussion between users of the FieldTrip  toolbox, to share experiences and to discuss new ideas for MEG and EEG analysis. See also http://listserv.surfnet.nl/archives/fieldtrip.html and http://www.ru.nl/fcdonders/fieldtrip.


More information about the fieldtrip mailing list