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tools:cifti_surfaces [2024/03/15 11:59] – created vsydnor | tools:cifti_surfaces [2025/06/03 16:45] (current) – [Connectome Workbench Tools] vid79 | ||
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- | beep boop | + | ====== Surface-based Analysis (cifti) ====== |
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+ | Surface files track vertices instead of volumetric voxels. Files are created by tools like [[: | ||
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+ | ===== Types ===== | ||
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+ | citfi files have double extentions like '' | ||
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+ | ^ dscalar | one or more dense maps of scalar values (e.g., myelin maps, curvature maps) | | ||
+ | ^ dtseries | one or more dense timeseries datasets (e.g., fMRI timeseries) or other data at equal intervals | | ||
+ | ^ dlabel | one or more dense maps of integer values, plus a ‘label table’ that defines each integer (e.g., one or more parcellations of cerebral cortex, subcortical nuclei, or all grayordinates) | | ||
+ | ^ pscalar | one or more parcellated scalar maps (e.g., a parcellated thickness map having uniform thickness within each parcel | | ||
+ | ^ ptseries | parcellated timeseries | | ||
+ | ^ plabel | one or more parcel maps, where each parcel is identified and colored using a label | | ||
+ | |||
+ | ===== Working with surface data in R ===== | ||
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+ | See Val's tutorial on github [[https:// | ||
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+ | ===== Working with surface data using Connectome Workbench ===== | ||
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+ | Download connectome workbench using these commands in your terminal \\ | ||
+ | (for ubuntu [[https:// | ||
+ | |||
+ | < | ||
+ | # check your release Codename matches (2025-05-27: | ||
+ | lsb_release -a | ||
+ | |||
+ | # add repo to get neurodebian packages | ||
+ | wget -O- http:// | ||
+ | sudo apt-key adv --recv-keys --keyserver hkps:// | ||
+ | |||
+ | # install connectome workbench | ||
+ | sudo apt-get update | ||
+ | sudo apt-get install connectome-workbench | ||
+ | </ | ||
+ | |||
+ | Now you should be able to open files in connectome-workbench with '' | ||
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+ | ====Connectome Workbench Tools==== | ||
+ | See all of the available workbench commands here [[https:// | ||
+ | |||
+ | < | ||
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+ | Run '' | ||
+ | < | ||
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+ | https:// | ||
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+ | Connectome '' | ||
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+ | To visualize surface data in workbench, you must load a .surf.gii surface geometry first, and then your surface data. On [[: | ||
+ | |||
+ | <WRAP tip> | ||
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+ | To see your files on a surface: **File > Load** ''/ | ||
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+ | </ | ||
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+ | wb_view example: | ||
+ | < |