[FieldTrip] plotting interpolated sources with ft_sourceplot
Tyler Grummett
tyler.grummett at flinders.edu.au
Tue Apr 1 08:45:50 CEST 2014
Hey Jorn,
It looks like the function prepare_headmodel is altering cfg.channel at line 54:
sens = ft_fetch_sens(cfg, data);
line 94:
[vol, sens] = ft_prepare_vol_sens(vol, sens, 'channel', cfg.channel, 'order', cfg.order);
and line 97:
cfg.channel = sens.label;
sens =
elecpos: [0x3 double]
label: {1x0 cell}
type: 'eeg1005'
unit: 'cm'
chanpos: [0x3 double]
this function is called in ft_sourceanalysis.
After that I dont have the labels anymore.
Tyler
*************************
Tyler Grummett ( BBSc, BSc(Hons I))
PhD Candidate
Brain Signals Laboratory
Flinders University
Rm 5A301
Ext 66124
________________________________________
From: fieldtrip-bounces at science.ru.nl <fieldtrip-bounces at science.ru.nl> on behalf of "Jörn M. Horschig" <jm.horschig at donders.ru.nl>
Sent: Tuesday, 1 April 2014 4:47 PM
To: FieldTrip discussion list
Subject: Re: [FieldTrip] plotting interpolated sources with ft_sourceplot
Hi Tyler,
the leadfield matrix contains by design no channel labels, and I think
that FieldTrip assumes that the elements of the leadfield coincides with
the elements of the channel. I guess you can avoid the error you get by
setting
cfg.channel = data.label;
when computing the leadfield. You could try that, otherwise your code
looks fine.
Best,
Jörn
On 4/1/2014 1:58 AM, Tyler Grummett wrote:
> Hey Jorn,
>
> I am still getting an error when running ft_sourceanalysis. Ill try and give you the full picture of what I am doing.
>
> 1. coming from eeglab to fieldtrip:
>
> % convert to fieldtrip
> process = 'componentanalysis';
> data = eeglab2fieldtrip( EEG, process, 'none');
>
> data =
>
> label: {1x121 cell}
> fsample: 500
> elec: [1x1 struct]
> trial: {[121x19767 single]}
> time: {[1x19767 double]}
> topolabel: {1x121 cell}
> topo: [121x121 double]
> cfg: [1x1 struct]
>
> 2. Calculate timelock analysis
>
> % calculating the timelock analysis
> cfg = [];
> % cfg.channel = 'EEG'; % for some reason it crashes the
> % beamformer
> cfg.vartrllength = 2; % accept variable length trials
> cfg.covariance = 'yes';
> cfg.covariancewindow = 'all';
> % cfg.channel = data.label;
> timelock = ft_timelockanalysis(cfg, data);
>
> timelock =
>
> avg: [121x19767 double]
> var: [121x19767 double]
> time: [1x19767 double]
> dof: [121x19767 double]
> label: {1x121 cell}
> dimord: 'chan_time'
> cov: [121x121 double]
> elec: [1x1 struct]
> cfg: [1x1 struct]
>
> 3. Calculate head model
>
> % the forward model and lead field matrix
> mri = ft_read_mri( 'Subject01.mri');
> cfg = [];
> cfg.write = 'no';
> cfg.coordsys = 'ctf';
> segmentedmri = ft_volumesegment(cfg, mri);
>
> cfg = [];
> cfg.method = 'concentricspheres';
> vol = ft_prepare_headmodel(cfg, segmentedmri);
>
> vol =
>
> unit: 'mm'
> r: 69.8077
> o: [19.2853 1.2231 54.6031]
> cond: 1
> type: 'concentricspheres'
> cfg: [1x1 struct]
>
> 4. Compute lead field
>
> % compute lead field ( apparently source analysis computes
> % lead field anyway
> cfg = [];
> cfg.elec = timelock.elec;
> cfg.vol = vol;
> cfg.reducerank = 3;
> cfg.grid.resolution = 1; % use a 3-D grid with a 1 cm resolution
> cfg.grid.unit = 'cm';
> cfg.normalize = 'yes'; % if you are not contrasting the activity of interest again another condition or baseline time-window
> grid = ft_prepare_leadfield( cfg);
>
> grid =
>
> xgrid: [-5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8]
> ygrid: [-6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7]
> zgrid: [-1 0 1 2 3 4 5 6 7 8 9 10 11 12]
> dim: [14 14 14]
> pos: [2744x3 double]
> unit: 'cm'
> inside: [1x1430 double]
> outside: [1x1314 double]
> cfg: [1x1 struct]
> leadfield: {1x2744 cell}
>
> 5. Compute ft_source analysis
>
> % Source Analysis: without contrasting condition
> cfg = [];
> cfg.method = 'lcmv';
> cfg.grid = grid;
> cfg.vol = vol;
> % cfg.grid.pos = 'maxpos';
> cfg.keepfilter = 'yes';
> cfg.dics.projectnoise = 'yes';
> cfg.dics.lambda = 0;
> source = ft_sourceanalysis( cfg, timelock);
>
> It crashes with the following error:
>
> Error using *
> Inner matrix dimensions must agree.
>
> Error in beamformer_lcmv (line 268)
> filt = pinv(lf' * invCy * lf) * lf' * invCy;
> % van Veen eqn. 23, use PINV/SVD to cover rank
> deficient leadfield
>
> Error in ft_sourceanalysis (line 794)
> dip(i) = beamformer_lcmv(grid, sens, vol,
> squeeze_avg, squeeze(Cy(i,:,:)), optarg{:});
>
>
> Please note that fieldtrip is up to date.
> Can you see an error? I will trying looking in the tutorials again.
> Also, did you want a segment of my data to see if you can get it working?
>
>
> *************************
>
> Tyler Grummett ( BBSc, BSc(Hons I))
> PhD Candidate
> Brain Signals Laboratory
> Flinders University
> Rm 5A301
> Ext 66124
>
> ________________________________________
> From: fieldtrip-bounces at science.ru.nl <fieldtrip-bounces at science.ru.nl> on behalf of "Jörn M. Horschig" <jm.horschig at donders.ru.nl>
> Sent: Tuesday, 1 April 2014 1:42 AM
> To: fieldtrip at science.ru.nl
> Subject: Re: [FieldTrip] plotting interpolated sources with ft_sourceplot
>
> just to clarify and be precise
>> The pos-matrix has to be a regular 3D grid, i.e. be representable as a
>> 3x3x3 matrix.
> it actually does not have to be as you can also beam individual grid
> points, but if you have a .dim field, then is has to be like above. But
> that does not affect the rest of the mail I wrote ;)
>
>
>> I am not quite sure how the sourceinterpolate function is handeling
>> the fact that you do not have that .dim field. Apparently, it is also
>> confused ;)
>>
>> Do you want to reconstruct only some voxels? From your code it seems
>> that you want to cover the whole brain with a 1cm resolution. If the
>> latter is the case, maybe restart with creating your forward model by
>> following the tutorial that I posted in my previous mail. There are
>> some sanity checks that can help you figuring out if you are doing the
>> correct thing. If the former one is the case, please explain again
>> what exactly you want to achieve and how you are building your forward
>> model.
>>
>> Best,
>> Jörn
>>
>> btw, there's nothing wrong with being a PhD student, it's just a
>> matter of experience in practice and theory as in all domains in life ;)
>>
>>
>> On 3/31/2014 3:15 PM, Tyler Grummett wrote:
>>> Hey Jorn,
>>>
>>> Yes I am definitely confused haha, this stuff is way out of my league
>>> as a PhD student.
>>> Anyway, I feel we are getting somewhere.
>>>
>>> timelock =
>>>
>>> avg: [121x19767 double]
>>> var: [121x19767 double]
>>> time: [1x19767 double]
>>> dof: [121x19767 double]
>>> label: {1x121 cell}
>>> dimord: 'chan_time'
>>> cov: [121x121 double]
>>> elec: [1x1 struct]
>>> cfg: [1x1 struct]
>>>
>>> source =
>>>
>>> time: [1x19767 double]
>>> pos: [642x3 double]
>>> inside: [642x1 double]
>>> outside: []
>>> method: 'average'
>>> avg: [1x1 struct]
>>> cfg: [1x1 struct]
>>>
>>> sourceInt =
>>>
>>> time: [1x19767 double]
>>> avg: [1x1 struct]
>>> pos: [16777216x3 double]
>>> dim: [256 256 256]
>>> inside: [1x16777216 double]
>>> outside: [1x0 double]
>>> coordsys: 'ctf'
>>> unit: 'mm'
>>> cfg: [1x1 struct]
>>>
>>> Given what I said last time, I might not comment on the differences.
>>> I hope you can see something wrong.
>>>
>>> One thing I should mention is that the data is continuous, around 30
>>> seconds. Therefore there is only one trial,
>>> is that an issue?
>>>
>>> Tyler
>>>
>>> *************************
>>>
>>> Tyler Grummett ( BBSc, BSc(Hons I))
>>> PhD Candidate
>>> Brain Signals Laboratory
>>> Flinders University
>>> Rm 5A301
>>> Ext 66124
>>>
>>> ________________________________________
>>> From: fieldtrip-bounces at science.ru.nl
>>> <fieldtrip-bounces at science.ru.nl> on behalf of "Jörn M. Horschig"
>>> <jm.horschig at donders.ru.nl>
>>> Sent: Monday, 31 March 2014 10:24 PM
>>> To: FieldTrip discussion list
>>> Subject: Re: [FieldTrip] plotting interpolated sources with
>>> ft_sourceplot
>>>
>>> Hi Tyler,
>>>
>>> there is not much inherently different between time- and
>>> freuqency-domain beamformer, at least in terms of computing the forward
>>> and the inverse solution. But I see that you are obviously confused, so
>>> let me try to help you out and shed some light on what you are actually
>>> doing ;)
>>>
>>>
>>>> I had a look at my variables.
>>>>
>>>> source.avg =
>>>>
>>>> pow: [642x1 double]
>>>> filter: {642x1 cell}
>>>>
>>>> sourceInt.avg =
>>>>
>>>> pow: [16777216x1 double]
>>>>
>>>> So clearly, as both variables are completely different. Something
>>>> has gone wrong.
>>> No, that is actually how it should be. From below you can see that your
>>> MRI has 3-dimensions, each with 256 elements, that is 256*256*256 =
>>> 16777216 elements. In line with source.avg.pow, you should see that your
>>> 'grid' consists of 642 elements, so you were computing your source
>>> activity on a grid of in total 642 elements. Then you used the original
>>> MRI to interpolate from 642 to these 16 million grid points. Actually,
>>> since you specific cfg.downsample = 2, it should have been only 8
>>> million points, so that's where things already get a bit weird.
>>>
>>> So let's go into some sanity checks:
>>> 1. are you using the latest version (or a recent, i.e. from this year)
>>> of FielTrip?
>>> 2. sourceInt should look something like this, does it?
>>>
>>> source_diff_int =
>>> inside: [46x55x46 logical]
>>> avg: [1x1 struct]
>>> dim: [46 55 46]
>>> transform: [4x4 double]
>>> anatomy: [46x55x46 double]
>>> unit: 'mm'
>>> cfg: [1x1 struct]
>>>
>>>
>>>
>>> 3. source should look something like this:
>>>
>>> source =
>>> dim: [20 25 22]
>>> freq: 54.8287
>>> cumtapcnt: [338x1 double]
>>> pos: [11000x3 double]
>>> inside: [1x5798 double]
>>> outside: [1x5202 double]
>>> method: 'average'
>>> avg: [1x1 struct]
>>> trialinfo: [338x1 double]
>>> cfg: [1x1 struct]
>>>
>>> 4. also check your grid, should be something like this:
>>>
>>> sourcemodel =
>>>
>>> pos: [11000x3 double]
>>> dim: [20 25 22]
>>> unit: 'cm'
>>> inside: [1x5798 double]
>>> outside: [1x5202 double]
>>> params: [1x1 struct]
>>> initial: [4x4 double]
>>> cfg: [1x1 struct]
>>>
>>>
>>> Of course, it should all look a bit different, because you are using
>>> LCMV, but essentially it should be the same. Lastly, you can check other
>>> source plotting methods, like 'ortho' or try to plot the source
>>> structure rather than the sourceInt structure. In the end, the error
>>> must be somewhere in your grid, be it in .pos or .inside, because
>>> FieldTrip thinks that there is only one voxel to be plotted. There are
>>> other things that may be the issue, but I am not sure about these. So, I
>>> would suggest that you play a bit around and see where the error might
>>> come from (e.g. follow this tutorial:
>>> http://fieldtrip.fcdonders.nl/tutorial/beamformingextended and adapt the
>>> steps that you need for LCMV, maybe also check out:
>>> http://fieldtrip.fcdonders.nl/tutorial/connectivity#connectivity_between_meg_virtual_channel_and_emg
>>>
>>> there, LCMV is used, but on one voxel only)
>>>
>>> Best,
>>> Jörn
>>>
>>>> The next part of my code is the following:
>>>>
>>>> % interpolate sources
>>>> mri = ft_read_mri('Subject01.mri');
>>>> mri = ft_volumereslice([], mri);
>>>>
>>>> cfg = [];
>>>> cfg.downsample = 2;
>>>> cfg.parameter = 'avg.pow';
>>>> sourceInt = ft_sourceinterpolate( cfg, source, mri);
>>>> sourceInt = rmfield( sourceInt,'time'); % The avg.pow
>>>> parameter
>>>> % does not vary over time, therefore the time
>>>> dimension is not needed.
>>>>
>>>> mri =
>>>>
>>>> anatomy: [256x256x256 double]
>>>> dim: [256 256 256]
>>>> transform: [4x4 double]
>>>> coordsys: 'ctf'
>>>> unit: 'mm'
>>>> cfg: [1x1 struct]
>>>>
>>>> I cant really see if the data works in the tutorial because it
>>>> doesnt appear as though fieldtrip has a tutorial on lcmv
>>>> beamformers, they seem to stick to frequency domain beamformers.
>>>>
>>>> Ive been wrong before though,
>>>>
>>>> thanks for your help.
>>>>
>>>> Tyler
>>>>
>>>> *************************
>>>>
>>>> Tyler Grummett ( BBSc, BSc(Hons I))
>>>> PhD Candidate
>>>> Brain Signals Laboratory
>>>> Flinders University
>>>> Rm 5A301
>>>> Ext 66124
>>>>
>>>> ________________________________________
>>>> From: fieldtrip-bounces at science.ru.nl
>>>> <fieldtrip-bounces at science.ru.nl> on behalf of "Jörn M. Horschig"
>>>> <jm.horschig at donders.ru.nl>
>>>> Sent: Monday, 31 March 2014 7:13 PM
>>>> To: FieldTrip discussion list
>>>> Subject: Re: [FieldTrip] plotting interpolated sources with
>>>> ft_sourceplot
>>>>
>>>> Hi Tyler,
>>>>
>>>> hm, okay, it could be that the issue with the leadfield and with the
>>>> plot are related, but it could also be that they are separate issues. I
>>>> just saw that you posted the same 'problem' on bugzilla and included a
>>>> picture. Maybe for next time, include a picture on the mailinglist and
>>>> just create a bug on bugzilla if you are sure it is a bug in Fieldtrip
>>>> and not if you are not sure. That saves us a lot of time in separating
>>>> code issues from user problems ;)
>>>>
>>>> So, back to you problem. It seems that your reconstruction results in
>>>> one voxel only. Are you sure that your grid consistents of more than
>>>> just one position? So, for example check the size of the matrices in
>>>> source.avg, source- and headmodel, etc.
>>>>
>>>> Also, you can check in Matlab the respective fields of source and
>>>> sourceInt and see whether that makes sense.
>>>>
>>>> Lastly, a neat way to check is always to use your code on data from the
>>>> tutorial, and vice versa, use code from the tutorial on your data and
>>>> see whether that works. Both should give sensible results, and if one
>>>> does not, you know where to start looking for a solution ;)
>>>>
>>>> Best,
>>>> Jörn
>>>>
>>>>
>>>> On 3/31/2014 9:41 AM, Tyler Grummett wrote:
>>>>> Hey Jorn,
>>>>>
>>>>> Previously I have let ft_sourceanalysis do a lead field because if
>>>>> I use the following code:
>>>>>
>>>>> % compute lead field ( apparently source analysis computes
>>>>> % lead field anyway
>>>>> cfg = [];
>>>>> cfg.elec = timelock.elec;
>>>>> cfg.vol = vol;
>>>>> cfg.reducerank = 3;
>>>>> cfg.grid.resolution = 1; % use a 3-D grid with a 1
>>>>> cm resolution
>>>>> cfg.grid.unit = 'cm';
>>>>> cfg.normalize = 'yes'; % if you are not
>>>>> contrasting the activity of interest again another condition or
>>>>> baseline time-window
>>>>> grid = ft_prepare_leadfield( cfg); %% THIS IS WHERE
>>>>> I AM UP TO
>>>>>
>>>>> and then calculate the source analysis:
>>>>>
>>>>> % Source Analysis: without contrasting condition
>>>>> cfg = [];
>>>>> cfg.method = 'lcmv';
>>>>> cfg.grid = grid;
>>>>> cfg.vol = vol;
>>>>> % cfg.grid.pos = maxpos;
>>>>> cfg.keepfilter = 'yes';
>>>>> cfg.dics.projectnoise = 'yes';
>>>>> % cfg.dics.lambda = 0;
>>>>> source = ft_sourceanalysis( cfg, timelock);
>>>>>
>>>>> then I get an error than says:
>>>>>
>>>>> Error using *
>>>>> Inner matrix dimensions must agree.
>>>>>
>>>>> Error in beamformer_lcmv (line 268)
>>>>> filt = pinv(lf' * invCy * lf) * lf' *
>>>>> invCy; % van Veen eqn. 23, use
>>>>> PINV/SVD to cover rank deficient leadfield
>>>>>
>>>>> Error in ft_sourceanalysis (line 794)
>>>>> dip(i) = beamformer_lcmv(grid, sens, vol,
>>>>> squeeze_avg, squeeze(Cy(i,:,:)),
>>>>> optarg{:});
>>>>>
>>>>> I just removed the leadfield code and it successfully ran. I could
>>>>> also interpolate it later.
>>>>> Is this the correct approach.
>>>>>
>>>>> Thankyou in advance!
>>>>>
>>>>> Tyler
>>>>>
>>>>> *************************
>>>>>
>>>>> Tyler Grummett ( BBSc, BSc(Hons I))
>>>>> PhD Candidate
>>>>> Brain Signals Laboratory
>>>>> Flinders University
>>>>> Rm 5A301
>>>>> Ext 66124
>>>>>
>>>>> ________________________________________
>>>>> From: fieldtrip-bounces at science.ru.nl
>>>>> <fieldtrip-bounces at science.ru.nl> on behalf of "Jörn M. Horschig"
>>>>> <jm.horschig at donders.ru.nl>
>>>>> Sent: Monday, 31 March 2014 5:30 PM
>>>>> To: FieldTrip discussion list
>>>>> Subject: Re: [FieldTrip] plotting interpolated sources with
>>>>> ft_sourceplot
>>>>>
>>>>> Hi Tyler,
>>>>>
>>>>> what you are describing sounds to me like the center bias of the
>>>>> beamformer. Did you contrast the activity with anything, or did you
>>>>> normalize your leadfield?
>>>>> Check this out:
>>>>> http://fieldtrip.fcdonders.nl/tutorial/beamformer#source_analysiswithout_contrasting_condition
>>>>>
>>>>>
>>>>> Best,
>>>>> Jörn
>>>>>
>>>>> On 3/31/2014 5:46 AM, Tyler Grummett wrote:
>>>>>> I have been trying to plot my interpolated source data using the
>>>>>> code:
>>>>>>
>>>>>> % interpolate sources
>>>>>> mri = ft_read_mri('Subject01.mri');
>>>>>> mri = ft_volumereslice([], mri);
>>>>>> cfg = [];
>>>>>> cfg.downsample = 2;
>>>>>> cfg.parameter = 'avg.pow';
>>>>>> sourceInt = ft_sourceinterpolate( cfg, source, mri);
>>>>>> sourceInt = rmfield( sourceInt,'time'); % The avg.pow
>>>>>> parameter
>>>>>> % does not vary over time, therefore the time
>>>>>> dimension
>>>>>> is not needed.
>>>>>>
>>>>>> % Plot interpolated data
>>>>>> cfg = []; %#ok<UNRCH>
>>>>>> cfg.method = 'ortho'; % spline
>>>>>> cfg.funparameter = 'avg.pow';
>>>>>> ft_sourceplot( cfg, sourceInt);
>>>>>>
>>>>>> However the figure that comes up just had orange squares in the
>>>>>> subplots.
>>>>>>
>>>>>> I dont know where Ive gone wrong.
>>>>>>
>>>>>>
>>>>>> Tyler
>>>>>>
>>>>>>
>>>>>> *************************
>>>>>>
>>>>>> /Tyler Grummett ( BBSc, BSc(Hons I))/
>>>>>> /PhD Candidate/
>>>>>> /Brain Signals Laboratory/
>>>>>> /Flinders University/
>>>>>> /Rm 5A301/
>>>>>> /Ext 66124/
>>>>>>
>>>>>>
>>>>>> _______________________________________________
>>>>>> fieldtrip mailing list
>>>>>> fieldtrip at donders.ru.nl
>>>>>> http://mailman.science.ru.nl/mailman/listinfo/fieldtrip
>>>>> --
>>>>> Jörn M. Horschig
>>>>> PhD Student
>>>>> Donders Institute for Brain, Cognition and Behaviour
>>>>> Centre for Cognitive Neuroimaging
>>>>> Radboud University Nijmegen
>>>>> Neuronal Oscillations Group
>>>>> FieldTrip Development Team
>>>>>
>>>>> P.O. Box 9101
>>>>> NL-6500 HB Nijmegen
>>>>> The Netherlands
>>>>>
>>>>> Contact:
>>>>> E-Mail: jm.horschig at donders.ru.nl
>>>>> Tel: +31-(0)24-36-68493
>>>>> Web: http://www.ru.nl/donders
>>>>>
>>>>> Visiting address:
>>>>> Trigon, room 2.30
>>>>> Kapittelweg 29
>>>>> NL-6525 EN Nijmegen
>>>>> The Netherlands
>>>>>
>>>>> _______________________________________________
>>>>> fieldtrip mailing list
>>>>> fieldtrip at donders.ru.nl
>>>>> http://mailman.science.ru.nl/mailman/listinfo/fieldtrip
>>>>> _______________________________________________
>>>>> fieldtrip mailing list
>>>>> fieldtrip at donders.ru.nl
>>>>> http://mailman.science.ru.nl/mailman/listinfo/fieldtrip
>>>> --
>>>> Jörn M. Horschig
>>>> PhD Student
>>>> Donders Institute for Brain, Cognition and Behaviour
>>>> Centre for Cognitive Neuroimaging
>>>> Radboud University Nijmegen
>>>> Neuronal Oscillations Group
>>>> FieldTrip Development Team
>>>>
>>>> P.O. Box 9101
>>>> NL-6500 HB Nijmegen
>>>> The Netherlands
>>>>
>>>> Contact:
>>>> E-Mail: jm.horschig at donders.ru.nl
>>>> Tel: +31-(0)24-36-68493
>>>> Web: http://www.ru.nl/donders
>>>>
>>>> Visiting address:
>>>> Trigon, room 2.30
>>>> Kapittelweg 29
>>>> NL-6525 EN Nijmegen
>>>> The Netherlands
>>>>
>>>> _______________________________________________
>>>> fieldtrip mailing list
>>>> fieldtrip at donders.ru.nl
>>>> http://mailman.science.ru.nl/mailman/listinfo/fieldtrip
>>>> _______________________________________________
>>>> fieldtrip mailing list
>>>> fieldtrip at donders.ru.nl
>>>> http://mailman.science.ru.nl/mailman/listinfo/fieldtrip
>>> --
>>> Jörn M. Horschig
>>> PhD Student
>>> Donders Institute for Brain, Cognition and Behaviour
>>> Centre for Cognitive Neuroimaging
>>> Radboud University Nijmegen
>>> Neuronal Oscillations Group
>>> FieldTrip Development Team
>>>
>>> P.O. Box 9101
>>> NL-6500 HB Nijmegen
>>> The Netherlands
>>>
>>> Contact:
>>> E-Mail: jm.horschig at donders.ru.nl
>>> Tel: +31-(0)24-36-68493
>>> Web: http://www.ru.nl/donders
>>>
>>> Visiting address:
>>> Trigon, room 2.30
>>> Kapittelweg 29
>>> NL-6525 EN Nijmegen
>>> The Netherlands
>>>
>>> _______________________________________________
>>> fieldtrip mailing list
>>> fieldtrip at donders.ru.nl
>>> http://mailman.science.ru.nl/mailman/listinfo/fieldtrip
>>> _______________________________________________
>>> fieldtrip mailing list
>>> fieldtrip at donders.ru.nl
>>> http://mailman.science.ru.nl/mailman/listinfo/fieldtrip
>>
>
> --
> Jörn M. Horschig
> PhD Student
> Donders Institute for Brain, Cognition and Behaviour
> Centre for Cognitive Neuroimaging
> Radboud University Nijmegen
> Neuronal Oscillations Group
> FieldTrip Development Team
>
> P.O. Box 9101
> NL-6500 HB Nijmegen
> The Netherlands
>
> Contact:
> E-Mail: jm.horschig at donders.ru.nl
> Tel: +31-(0)24-36-68493
> Web: http://www.ru.nl/donders
>
> Visiting address:
> Trigon, room 2.30
> Kapittelweg 29
> NL-6525 EN Nijmegen
> The Netherlands
>
> _______________________________________________
> fieldtrip mailing list
> fieldtrip at donders.ru.nl
> http://mailman.science.ru.nl/mailman/listinfo/fieldtrip
> _______________________________________________
> fieldtrip mailing list
> fieldtrip at donders.ru.nl
> http://mailman.science.ru.nl/mailman/listinfo/fieldtrip
--
Jörn M. Horschig
PhD Student
Donders Institute for Brain, Cognition and Behaviour
Centre for Cognitive Neuroimaging
Radboud University Nijmegen
Neuronal Oscillations Group
FieldTrip Development Team
P.O. Box 9101
NL-6500 HB Nijmegen
The Netherlands
Contact:
E-Mail: jm.horschig at donders.ru.nl
Tel: +31-(0)24-36-68493
Web: http://www.ru.nl/donders
Visiting address:
Trigon, room 2.30
Kapittelweg 29
NL-6525 EN Nijmegen
The Netherlands
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