[Eeglablist] NFT Dipole Fitting

[Grant Hanada]

Hi all,

I found this question from last year and I am having the identical 
situation. Has this ever been solved? I get the exact same error as 
mentioned below. For reference, I am using NFT 2.3 and I am using Matlab 
2014b. I have tried this with EEGLAB versions 13.0.1b, 13.5.4b, and 
13.6.5b with only adding path to the parent folder (not using 
"genpath"). I have also tried it both with and without an EEG file 
loaded into EEGLAB (meaning the "EEG" struct is present in the 
workspace). Any way I try it, I always get the same error after pressing 
the "Dipole Fitting" button in the NFT GUI. I can't find much 
documentation on using Dipole Fitting through NFT (it isn't in the wiki 
tutorial nor covered in Zeynep's instructional videos) and it seems that 
the EEGLAB DIPFIT 2.x plugin is not meant to handle subject specific 
models/meshes generated by NFT, only normalized MNI models. I have 
successfully generated all the segmentations, source spaces, meshes, and 
electrode co-registration for a single subject, and now I just need to 
run the dipole fitting to their individual MRI.

Thanks,
Grant Hanada


Subject:
Re: [Eeglablist] NFT Dipole Fitting
From:
Makoto Miyakoshi <mmiyakoshi at ucsd.edu>
Date:
04/15/2015 10:12 PM

To:
Christopher Toole <ctoole at my.uri.edu>
CC:
EEGLAB List <eeglablist at sccn.ucsd.edu>


 > and all sub folders of both NFT and EEGLAB are in the path.

This could cause a trouble. Don't use recursive addpath to (at least) 
eeglab subfolders.

Makoto

On Sat, Apr 11, 2015 at 10:12 AM, Christopher Toole <ctoole at my.uri.edu 
<mailto:ctoole at my.uri.edu>> wrote:

    Could this possibly be an installation issue? The only instruction I
    have found online for this step is that NFT integration with EEGLAB
    is required. Could anyone please elaborate? I have put NFT in the
    plugins folder of EEGLAB, and all sub folders of both NFT and EEGLAB
    are in the path. Does this step of NFT only work with certain
    versions of EEGLAB? Thanks in advance.

    Chris

    On Tue, Apr 7, 2015 at 3:31 PM, Makoto Miyakoshi
    <mmiyakoshi at ucsd.edu <mailto:mmiyakoshi at ucsd.edu>> wrote:

        Zeynep, here is a question for you about NFT. Could you please
        help him?

        Makoto

        On Mon, Apr 6, 2015 at 5:39 PM, Christopher Toole
        <ctoole at my.uri.edu <mailto:ctoole at my.uri.edu>> wrote:

            Dear Listers,

            I am trying to use the NFT plugin to localize sources in
            realistic head models. I have had no trouble creating models
            from MR images and solving the forward problem with NFT. 
            However, upon clicking the Dipole Fitting button, I receive
            the error "Reference to non-existent field 'EEG'." I am
            aware that ICA decomposition on the desired EEG data set
            must be completed and have done so in EEGLAB. The set is
            loaded prior to clicking the Dipole Fitting button in the
            NFT GUI. Any advice as to why I am getting this error would
            be greatly appreciated.  The error is as follows:

            "Reference to non-existent field 'EEG'.

            Error in
            Neuroelectromagnetic_Forward_Modeling_Toolbox>pushbutton_ip_Callback
            (line 196)
            Inverse_Problem_Solution('EEGstruct',handles.EEG,'subjectdir',
            handles.SubjectFolder, 'subject', subj_name,
               'session', ses_name);

            Error in gui_mainfcn (line 75)
                   feval(varargin{:});

            Error in Neuroelectromagnetic_Forward_Modeling_Toolbox (line 61)
               gui_mainfcn(gui_State, varargin{:});

            Error in
            @(hObject,eventdata)Neuroelectromagnetic_Forward_Modeling_Toolbox('pushbutton_ip_Callback',hObject,eventdata,guidata(hObject))

            Error while evaluating uicontrol Callback"

            Any advice for getting the "dipole fitting"  step to work?

            Thanks,

            Christopher Toole
            PhD student, Interdisciplinary Neuroscience Program
            University of Rhode Island
            ctoole at my.uri.edu <mailto:ctoole at my.uri.edu>

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        -- 
        Makoto Miyakoshi
        Swartz Center for Computational Neuroscience
        Institute for Neural Computation, University of California San Diego







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