Load Glasser Atlas — get_glasser

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)

Source

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

Arguments

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

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')

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

References

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

Examples

if (FALSE) { # \dontrun{
# Load atlas in native space
atlas <- get_glasser_atlas()

# View region labels
head(atlas$labels)

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