This package contains information on verified atlases compatible for use in ggseg and ggseg3d plotting packages in R. It also contains functions and pipelines to create custom atlases.

We recommend installing this package from its r-universe build:

```
# Enable this universe
options(repos = c(
ggseg = 'https://ggseg.r-universe.dev',
CRAN = 'https://cloud.r-project.org'))
# Install some packages
install.packages('ggsegExtra')
```

Alternatively, install the package with the remotes package from github.

```
# install.packages("remotes")
remotes::install_github("ggseg/ggsegExtra")
```

We have tutorials on how to make atlases available in the `Articles`

of the package documentation page. Currently, the pipeline for making 3d atlases needs FreeSufer to be installed on your system and a ready `.annot`

file to use for the conversions. Improvements to the pipeline in creating cortical atlases both for ggseg and ggseg3d is still being developed. Pipelines for creating sub-cortical atlases of any kind are still in their infancy, and we do not yet have good solutions for their creation. Suggestions for improvement are welcome through GH issues or direct Pull requests.

There are currently 23 available atlases across 23 packages. The packages, their repository name and location can be found with:

economo datasets for the ggseg-plotting tool This is a support package for the ggseg, and ggseg3d packages. It contains the economo atlases to plot using functions from those two packages.

Flechsig datasets for the ggseg-plotting tool This is a support package for the ggseg, and ggseg3d packages. It contains the Flechsig atlases to plot using functions from those two packages.

Kleist datasets for the ggseg-plotting tool This is a support package for the ggseg, and ggseg3d packages. It contains the historical Kleist atlases to plot using functions from those two packages.

brodmann datasets for the ggseg-plotting tool This is a support package for the ggseg, and ggseg3d packages. It contains the brodmann area atlases to plot using functions from those two packages.

Campbell(1905) datasets for the ggseg-plotting tool This is a support package for the ggseg, and ggseg3d packages. It contains the Campbell

(1905) atlases to plot using functions from those two packages.

ica datasets for the ggseg-plotting tool This is a support package for the ggseg, and ggseg3d packages. It contains the ica atlases to plot using functions from those two packages.

arslan datasets for the ggseg-plotting tool This is a support package for the ggseg, and ggseg3d packages. It contains the arslan atlases to plot using functions from those two packages.

gordon datasets for the ggseg-plotting tool This is a support package for the ggseg, and ggseg3d packages. It contains the gordon atlases to plot using functions from those two packages.

aicha datasets for the ggseg-plotting tool This is a support package for the ggseg, and ggseg3d packages. It contains the aicha atlases to plot using functions from those two packages.

aal datasets for the ggseg-plotting tool This is a support package for the ggseg, and ggseg3d packages. It contains the aal atlases to plot using functions from those two packages.

power datasets for the ggseg-plotting tool This is a support package for the ggseg, and ggseg3d packages. It contains the power atlases to plot using functions from those two packages.

Brainnetome datasets for the ggseg-plotting tool This is a support package for the ggseg, and ggseg3d packages. It contains the Brainnetome atlases to plot using functions from those two packages.

JHU datasets for the ggseg-plotting tool This is a support package for the ggseg, and ggseg3d packages. It contains the JHU atlases to plot using functions from those two packages.

Harvard-Oxford datasets for the ggseg-plotting tool This is a support package for the ggseg, and ggseg3d packages. It contains the Harvard-Oxford cortical atlases to plot using functions from those two packages.

ICBM datasets for the ggseg-plotting tool This is a support package for the ggseg, and ggseg3d packages. It contains the ICBM atlases to plot using functions from those two packages.

Extra dk and aseg datasets for the ggseg-plotting tool This is a support package for the ggseg, and ggseg3d packages. It contains the extra dk and aseg, with some minor differences from the original atlases to plot using functions from those two packages.

Desikan-Killiany-Tourville datasets for the ggseg-plotting tool This is a support package for the ggseg, and ggseg3d packages. It contains the DKT atlases to plot using functions from those two packages.

Tracula datasets for the ggseg-plotting tool This is a support package for the ggseg, and ggseg3d packages. It contains the Tracula atlases to plot using functions from those two packages.

Chen datasets for the ggseg-plotting tool This is a support package for the ggseg, and ggseg3d packages. It contains the Chen atlases to plot using functions from those two packages.

Desterieux datasets for the ggseg-plotting tool This is a support package for the ggseg, and ggseg3d packages. It contains the Desterieux atlases to plot using functions from those two packages.

Schaefer datasets for the ggseg-plotting tool This is a support package for the ggseg, and ggseg3d packages. It contains the Schaefer atlases to plot using functions from those two packages.

Glasser datasets for the ggseg-plotting tool This is a support package for the ggseg, and ggseg3d packages. It contains the Glasser atlases to plot using functions from those two packages.

Yeo 2011 Datasets for the ‘ggseg’-Package This is a support package for the ggseg, and ggseg3d packages. It contains the Yeo 2011 atlases to plot using functions from those two packages.

Please note that the ggsegExtra project is released with a Contributor Code of Conduct. By contributing to this project, you agree to abide by its terms.

Don’t hesitate to ask for support using github issues, or requesting new atlases. While we would love getting help in creating new atlases, you may also request atlases through the issues, and we will try to get to it.

This work is funded by **EU Horizon 2020 Grant** *‘Healthy minds 0-100 years: Optimizing the use of European brain imaging cohorts (Lifebrain)’*, with grant agreement `732592`

. The project has also received funding from the **European Research Council**’s *Starting grant* (grant agreements `283634`

, to Anders Martin Fjell and `313440`

to Kristine Beate Walhovd) and *Consolidator Grant* (grant agreement `771355`

to Kristine Beate Walhovd and `725025`

to Anders Martin Fjell). The project has received funding through multiple grants from the Norwegian Research Council.