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Cortical parcellation model

MarsAtlas is a model of cortical parcellation. It can be applied to any cortical surface via the HipHop parameterization pipeline, available in the BrainVisa Cortical Surface Toolbox, under the Anatomy category.

MarsAtlas has been developed in collaboration with Andréa Brovelli at INT.

It has been primarily designed for functional data analysis and localization. Both the atlas and its use for functional analysis have been presented int he following paper:

Guillaume Auzias*, Olivier Coulon*, Andrea Brovelli (2016) MarsAtlas : A cortical parcellation atlas for functional mapping, Human Brain Mapping 37(4), p. 1573-1592, url, doi:10.1002/hbm.23121 (* equal contribution)

It has also been used for functional connectivity inference in the following paper:

Brovelli, A., Badier, J.-M., Bonini, F., Bartolomei, F., Coulon*, O., & Auzias*, G. (2016). Dynamic reconfiguration of visuomotor-related functional connectivity networks. Journal of Neuroscience. https://doi.org/10.1523/JNEUROSCI.1672-16.2016 (*equal contribution)

The atlas is as shown below on the HipHop138 template.

It contains 41 parcellation areas on each hemisphere. These labels are available via one texture per hemisphere, that are outputs of the HIP-HOP pipeline, in <subject>/t1mri/default_acquisition/default_analysis/segmentation/mesh/surface_analysis/<subject>_L/Rwhite_parcels_marsAtlas.gii.

The surface parcellation can be propagated to the cortical volume segmentation by using the  ‘Cortical Surface -> Low Level -> 2D parcellation to 3D parcellation‘ BrainVisa process. This should result in something like this:

Visualization: when looking at a subject’s parcellation (surface or volume) with Anatomist, the best colormap is ‘MarsAtlas’. From Brainvisa, there is a viewer in the HipHop pipeline, also accessible directly in ‘Cortical Surface -> Viewers‘, that does the job for you.


Below is a table with the nomenclature of parcellation labels.


Label Lobe / Région Full name Brodman Area
VCcm Occipital Caudal Medial Visual Cortex 17/18
VCl Occipital Lateral Visual Cortex 37/19/18
VCs Occipital Superior Visual Cortex 19/39
Cu Occipital Cuneus 18/19
VCrm Occipital Rostral Medial Visual Cortex 18/19
ITCm Temporal Medial Inferior Temporal Cortex 36/37/20
ITCr Temporal Rostral Inferior Temporal Cortex 20
MTCc Temporal Caudal Middle Temporal Cortex 21/22/39
STCc Temporal Caudal Superior Temporal Cortex 22/41/42
STCr Temporal Rostral Superior Temporal Cortex 21/22/38
MTCr Temporal Rostral Middle Temporal Cortex 20/21/38
IPCv Parietal Ventral Inferior Parietal Cortex 40
IPCd Parietal Dorsal Inferior Parietal Cortex 39/40/7
SPC Parietal Superior Parietal Cortex 7
SPCm Parietal Medial Superior Parietal Cortex 7
PCm Parietal Medial Parietal Cortex 31
Sv Parietal Ventral Somatosensory Cortex 1/2/3
Sdl Parietal Dorsolateral Somatosensory Cortex 1/2/3
Sdm Parietal Dorsomedial Somatosensory Cortex 1/2/3/5/31
ICC Cingular Isthmus Cingulate Cortex 30
PCC Cingular Posterior Cingulate Cortex 23
MCC Cingular Mid Cingulate Cortex 24
ACC Cingular Anterior Cingulate Cortex 24/32
Mv Frontal Ventral Motor Cortex 4/6
Mdl Frontal Dorsolateral Motor Cortex 4
Mdm Frontal Dorsomedial Motor Cortex 4
PMrv Frontal Rostral Ventral Premotor Cortex 44/45
PMdl Frontal Dorsolateral Premotor Cortex 6/8
PMdm Frontal Dorsomedial Premotor Cortex 6
PFcdl Frontal Caudal Dorsolateral Prefrontal Cortex 45/46/9
PFcdm Frontal Caudal Dorsomedial Prefrontal Cortex 6/8
PFrvl Frontal Rostral Ventrolateral Prefrontal Cortex 47/45
Pfrdli Frontal Rostral Dorsolateral Inferior Prefrontal Cortex 10/46
Pfrdls Frontal Rostral Dorsolateral Superior Prefrontal Cortex 10/9
PFrd Frontal Rostral Dorsal Prefrontal Cortex 10/9/8
PFrm Frontal Rostral Medial Prefrontal Cortex 9/8
OFCvl Orbito-Frontal Ventrolateral Orbito Frontal Cortex 11/47
OFCv Orbito-Frontal Ventral Orbito Frontal Cortex 11/47
OFCvm Orbito-Frontal Ventromedial Orbito Frontal Cortex 10/11
PFCvm Orbito-Frontal Ventromedial Prefrontal Cortex 32/10/11
Insula Insula Insular Cortex 13