After being able to do the anatomical reconstruction of SEEG electrodes for almost 20 patients in a pretty smooth and straightforward way - thank you for that! - we are now hoping to be able to do some illustrations.
It would be useful to be able to plot the overall coverage of the population and some ROIs and/ or relevant functional results onto one single brain, coded by color or shape. However, so far we were only able to plot ROIs onto different brains (by creating a dummy patient with only electrodes located in the ROI).
I discussed with @as_dub about it but so far we are not aware of any built-in solutions. Does someone manage to do it?
Hi @Raymundo! Thank you for your help! These are the steps we have been following so far but they don't allow to color-code different types of relevant information onto the same brain yet. We will find a work around for now! Thanks
For instance the overall coverage with the different patients represented in different colors or the responsive electrodes compared to the entire coverage.
In other words: ways to highlight group effects onto only one brain.
Thank you Raymundo for your response and the debugging
I have two additional questions on this topic:
Is there a way to set the colors of each recording contact?
Is there a way to automatically set the colors of the electrodes/contacts to a specific feature of interest (e.g. patient, ROIs, etc.)? Do you plan to offer this feature? (again, happy to help)
Currently we are polishing some of the new features for iEEG, and this Group level displays are one of the features we want to add. I'll coordinate with @chinmay.chinara to avoid reinventing the wheel.
To answer the original question.
Yes, it is possible to plot arbitrary data on the Group electrode-contacts.
But currently, only through a "hacky" way: to generate a "data" file with the information we want to plot
Import the file containing all the electrodes-contacts in the CoReg subject. The total number of channels (48 in this example) will be indicated
Generate a matrix file with the same number of channels and only two samples
File > Simulate > Simulate generic signals
Export the created matrix file to Matlab right-click File > Export to Matlab.
And modify the Value field, so both columns have the same values, and the values correspond to the "data" to plot for the electrode-contacts. The order is the same as in the channel file. For this example values random integers 1 to 5
Import the modified matrix structure right-click File > Import from Matlab
Create a "raw" data file from the matrix. right-click Review as raw
Replace the channel file in the new raw folder. Copy and past the channel file from the Intra-subject folder
Now you can plot as usual with right-click on data > SEEG > 3D electrodes (cortex).
Adjust the colormap to reflect better the values that were assigned to each contact
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