parcellations for neuroimaging analysis

olsen_mtl

R Documentation

Olsen Medial Temporal Lobe Atlas

Description

A detailed parcellation atlas of the medial temporal lobe (MTL) regions, including hippocampus and surrounding cortical areas, based on the work of Rosanna Olsen and colleagues.

Usage

olsen_mtl

Format

A list with class 'atlas' containing:

name: Character string identifying the atlas
atlas: NeuroVol object containing the parcellation in 1mm MNI space
labels: Character vector of anatomical region labels
orig_labels: Full region labels including hemisphere information
ids: Integer vector of region IDs (1:16)
hemi: Character vector indicating hemisphere ('left' or 'right')

Details

The atlas provides a detailed segmentation of MTL structures in MNI space at 1mm resolution. It includes bilateral parcellation of:

Hippocampal subfields
Perirhinal cortex
Entorhinal cortex
Parahippocampal cortex

Source

Olsen, R. K., et al. (2013). The role of relational binding in item memory: Evidence from face recognition in a case of developmental amnesia. Journal of Neuroscience, 33(36), 14107-14111.

Examples

## Not run: 
# Load the atlas data
data(olsen_mtl)

# View available regions
olsen_mtl$labels

# Check distribution across hemispheres
table(olsen_mtl$hemi)

## End(Not run)

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