Difficulty in running dipole scanning

Bugs
1

I computed the head model as described in https://neuroimage.usc.edu/brainstorm/Tutorials/Epilepsy

When I run, Source>dipole scanning, getting this error, can you pls help me to solve this issue ?

BST> Saving scouts in surface: Subject01/tess_cortex_pial_low.mat

** Error: [process_dipole_scanning] Sources > Dipole scanning
** Line 110: Index exceeds matrix dimensions.
**
** Call stack:
** >process_dipole_scanning.m>Run at 110
** >process_dipole_scanning.m at 24
** >bst_process.m>Run at 196
** >bst_process.m at 36
** >panel_process1.m>RunProcess at 151
** >panel_process1.m at 26
** >gui_brainstorm.m>CreateWindow/ProcessRun_Callback at 788
** >bst_call.m at 28
** >gui_brainstorm.m>@(h,ev)bst_call(@ProcessRun_Callback) at 312
**
**
** File: link|Subject01/@raw2086073_20190706_095916_fil_seg_ave_1/results_Dipoles_EEG_KERNEL_210104_1206.mat|Subject01/@raw2086073_20190706_095916_fil_seg_ave_1/data_0raw_2086073_20190706_095916_fil_seg_ave_1.mat
**

1
1676×948 44.4 KB

2

It looks like something wrong happened to the files in your database: the recordings used to estimate the Dipoles map was modified or moved after...
Try deleting and recomputing the Dipoles file.

If you can't get this to work:

  • Please post a screen capture showing the files in the database explorer ("Functional view").
  • Type edit process_dipole_scanning, then put a breakpoint at line 110 (click just on the right of the line number to make a red circle appear)
  • Run the execution of the dipole scanning process. When the debugger stops, type DataMatP and then sResultP in the Matlab command window. Copy-paste the full text output here.
  • If you are not familiar with the Matlab debugger, watch a short introduction tutorial to this super useful tool.
3

thank you Francois for immediate response.

I rebuild the head model after deleting the files. But same issue persist.

here is my functional database files

functional
functional675×944 46.6 KB

Here is the outputs

DataMatP =

struct with fields:

 ChannelFlag: [257×1 double]
ColormapType: []
     Comment: 'Link to raw file'
    DataType: 'raw'
      Device: 'MFF'
DisplayUnits: []
      Events: []
           F: [1×1 struct]
     History: {1×3 cell}
        Leff: 1
         Std: []
        Time: [1×250 double]
        nAvg: 1

K>> sResultP

sResultP =

struct with fields:

 ImagingKernel: [45006×256 double]
  ImageGridAmp: []
           Std: []
      Whitener: [256×256 double]
SourceDecompSa: [3×15002 double]
SourceDecompVa: [3×45006 double]
   nComponents: 3
       Comment: 'Dipoles: EEG(Unconstr) 2018'
      Function: 'glsp'
          Time: [1×250 double]
      DataFile: 'Subject01/@raw2086073_20190706_095916_fil_seg_ave_1/data_0raw_2086073_20190706_095916_fil_seg_ave_1.mat'
 HeadModelFile: 'Subject01/@raw2086073_20190706_095916_fil_seg_ave_1/headmodel_surf_openmeeg_02.mat'
 HeadModelType: 'surface'
   ChannelFlag: [257×1 double]
   GoodChannel: [1×256 double]
   SurfaceFile: 'Subject01/tess_cortex_pial_low.mat'
         Atlas: []
       GridLoc: []
    GridOrient: []
     GridAtlas: []
       Options: [1×1 struct]
  ColormapType: []
  DisplayUnits: []
        ZScore: []
          nAvg: 1
          Leff: 1
  DataWhitener: []
       History: {'04-Jan-2021 14:14:50'  'compute'  'Source estimation: gls'}
4

The dipole scanning is not supported for continuous files.
Import your data segments of interest first.

I added a test to capture this error correctly:
Bugfix: Disable dipole scanning from raw links · brainstorm-tools/brainstorm3@2658cb7 · GitHub

When you update Brainstorm, you should see this error message:
image

5

Thank you so much, Francois. It works.