PRES: Connectional Architecture: Brainnetome Atlas Flashcards
What is the Brainnetome Atlas?
A connectivity-based atlas mapping the brain into 210 cortical and 36 subcortical regions.
What methods underpin the Brainnetome Atlas?
Multimodal neuroimaging, including structural, functional, and diffusion MRI.
How are connectivity-based parcellations determined?
By aggregating voxels with similar connectivity profiles.
What is a ‘connectional fingerprint’?
A unique pattern of brain region connectivity.
How does the atlas validate its parcellations?
Using split-half reliability and interhemispheric topographic consistency.
What imaging data supports connectivity mapping?
Probabilistic tractography and resting-state functional MRI.
How does the atlas integrate functional data?
By mapping behavioral tasks to specific brain regions.
What is the resolution of the Brainnetome Atlas?
It uses submillimeter resolution for detailed parcellations.
How does the atlas handle anatomical variability?
Through probabilistic maps reflecting interindividual differences.
What database aids functional characterization of regions?
The BrainMap database.
What are Maximum Probability Maps (MPMs) in this atlas?
Maps of the most probable location of subregions.
How does the atlas assist in understanding diseases?
By linking connectivity patterns to neurophysiological substrates of disorders.
What is the purpose of functional connectivity maps?
To reveal task-related activations and resting-state networks.
How is connectivity similarity assessed across hemispheres?
Using the cosine distance of connectivity fingerprints.
How are structural and functional connections compared?
By integrating probabilistic tractography and functional correlation maps.
