dk: Desikan-Killiany Cortical Atlas

In ggseg.formats: Brain Atlas Data Structures for the 'ggsegverse' Ecosystem

Desikan-Killiany Cortical Atlas

Description

Returns the Desikan-Killiany cortical parcellation atlas with 34 regions per hemisphere (68 total) on the cortical surface.

Usage

dk()

Details

This atlas is based on the FreeSurfer aparc annotation and is one of the most widely used cortical parcellations in neuroimaging research.

The atlas works with both ggseg (2D polygon plots) and ggseg3d (3D mesh visualizations) from a single object.

Value

A ggseg_atlas object with components:

atlas

Character. Atlas name ("dk")

type

Character. Atlas type ("cortical")

palette

Named character vector of colours for each region

data

A ggseg_data_cortical object containing:

vertices

Data frame with label and vertices columns

sf

Simple features data frame for 2D rendering

Regions

The atlas contains 34 regions per hemisphere including: banks of superior temporal sulcus, caudal anterior cingulate, caudal middle frontal, cuneus, entorhinal, fusiform, inferior parietal, inferior temporal, isthmus cingulate, lateral occipital, lateral orbitofrontal, lingual, medial orbitofrontal, middle temporal, parahippocampal, paracentral, pars opercularis, pars orbitalis, pars triangularis, pericalcarine, postcentral, posterior cingulate, precentral, precuneus, rostral anterior cingulate, rostral middle frontal, superior frontal, superior parietal, superior temporal, supramarginal, frontal pole, temporal pole, transverse temporal, and insula.

References

Desikan RS, Segonne F, Fischl B, et al. (2006). An automated labeling system for subdividing the human cerebral cortex on MRI scans into gyral based regions of interest. NeuroImage, 31(3):968-980. \Sexpr[results=rd]{tools:::Rd_expr_doi("10.1016/j.neuroimage.2006.01.021")}

Fischl B, van der Kouwe A, Destrieux C, et al. (2004). Automatically parcellating the human cerebral cortex. Cerebral Cortex, 14(1):11-22. \Sexpr[results=rd]{tools:::Rd_expr_doi("10.1093/cercor/bhg087")}

See Also

aseg() for subcortical structures, ggseg_atlas() for the atlas class constructor

Other ggseg_atlases: aseg(), suit(), tracula()

Examples

dk()
plot(dk())
atlas_regions(dk())
atlas_labels(dk())

ggseg.formats documentation built on July 2, 2026, 5:07 p.m.