parcellations for neuroimaging analysis

get_hipp_atlas

R Documentation

Extract Hippocampal Parcellation

Description

Creates a hippocampus-specific atlas from the Olsen MTL atlas, with optional anterior-posterior subdivisions.

Usage

get_hipp_atlas(outspace = NULL, apsections = 1)

Arguments

`outspace`	Optional `NeuroSpace` object for resampling
`apsections`	Integer specifying number of anterior-posterior divisions. Default: 1 (no subdivision)

Details

This function extracts hippocampal regions from the full MTL atlas and can subdivide them into anterior-posterior segments. The resulting atlas maintains bilateral organization and can be used for targeted hippocampal analyses.

Value

A list with class c("hippocampus", "atlas") containing:

name: Character string "hippocampus"
atlas: NeuroVol object with hippocampal parcellation
ids: Integer vector of region IDs
labels: Character vector of region labels
hemi: Character vector of hemisphere designations
cmap: Matrix of RGB colors for visualization
orig_labels: Full labels including hemisphere information

Examples

## Not run: 
# Basic hippocampal atlas
hipp <- get_hipp_atlas()

# With anterior-posterior subdivisions
hipp_ap <- get_hipp_atlas(apsections = 3)

## End(Not run)

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