Tutorials/Epileptogenicity

Discussions
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1

Hello there,

While I was going through the epileptogenicity tutorial (and I have seen others ask this question but github and the update did not fix it for me as of 9.16.24), I was able to upload the contact positions that I had localized and saved elsewhere and project them onto the head and inner skull. However, when I try to click on one of the contacts, i get the error "Input A of class cell and input B of class char must be cell arrays of character vectors, unless one is a character vector."

I'm not sure how to fix this. I am able to view all sEEG data, I have 96 contact positions uploaded and correct, but even in the iEEG tab, it will not show me any of the locations/coordinates for my uploaded electrode positions, even though I can open them and view them elsewhere.

Any help would be appreciated, thank you in advance!

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2

Hi @kjgrf,

Can you share a screenshot of the Channel file editor showing the contacts for the AntHyp group?
Right-click on the channel file EDF channels 149, then Edit channel file

Before doing so, close al the windows and clean the memory by clicking on the button iconDelete in the Brainstorm GUI (not the one to close Brainstorm).

FYI @chinmay.chinara

3

@Raymundo.Cassani Absolutely! Thank you for your timeliness:

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4

Thanks for the info.

After closing the figures and cleaning the memory. Does the error persist if you double-click the channel file?

Moreover, is there any message in the Matlab command window?

5

Sorry for the late response! I have closed all figures and cleared memory, and the error still persists. Upon double-clicking the channel file, the 3D view and MRI viewer open, but once I move over to the iEEG tab and try to select one of my electrodes, I am left with the following message:
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Also, now I get the following error when I try to click anywhere on the Brainstorm GUI, seems like creating that one more subject lead to a system overload and now Brainstorm doesn't know what to do:

** Error: Line 128: Arrays have incompatible sizes for this operation.
**
** Call stack:
** >node_create_db_studies.m at 128
** >panel_protocols.m>UpdateTree at 433
** >panel_protocols.m at 46
** >gui_brainstorm.m>CreateWindow/protocolDisplayModeChanged_Callback at 559
** >bst_call.m at 28
** >gui_brainstorm.m>@(h,ev)bst_call(@protocolDisplayModeChanged_Callback,h,ev) at 458