parcellations for neuroimaging analysis

get_glasser_atlas

R Documentation

Load Glasser Atlas

Description

Retrieves and loads the Glasser360 cortical parcellation atlas from the PennBBL repository. The atlas provides a detailed parcellation of the human cerebral cortex based on multi-modal neuroimaging data.

Usage

get_glasser_atlas(outspace = NULL)

Arguments

outspace

Optional NeuroSpace object specifying desired output space. If provided, the atlas will be resampled to this space. Default: NULL

Details

The Glasser atlas divides each hemisphere into 180 areas (360 total) based on cortical architecture, function, connectivity, and topography. The atlas is downloaded from the PennBBL xcpEngine repository and includes:

Volume data in MNI space
Region labels and hemisphere information
Color specifications for visualization

Value

A list with class 'glasser' and 'atlas' containing:

name: Character string "Glasser360"
atlas: A ClusteredNeuroVol object containing the parcellation
cmap: Data frame with RGB color specifications for each region
ids: Integer vector of region IDs (1:360)
labels: Character vector of anatomical labels
hemi: Character vector indicating hemisphere ('left' or 'right')

Source

Atlas files are downloaded from: https://github.com/PennBBL/xcpEngine/tree/master/atlas/glasser360

References

Glasser, M. F., et al. (2016). A multi-modal parcellation of human cerebral cortex. Nature, 536(7615), 171-178.

Examples

## Not run: 
# Load atlas in native space
atlas <- get_glasser_atlas()

# View region labels
head(atlas$labels)

# Check number of regions per hemisphere
table(atlas$hemi)

## End(Not run)

bbuchsbaum/neuroatlas documentation built on Dec. 24, 2024, 4:22 a.m.