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. (2017). Dynamic Reconfiguration of Visuomotor-Related Functional Connectivity Networks. The Journal of Neuroscience, 37(4), 839–853. https://doi.org/10.1523/JNEUROSCI.1672-16.2017 (*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.

 

Left index	Right Index	Label	Lobe / Région	Full name	Brodman Area
1	101	VCcm	Occipital	Caudal Medial Visual Cortex	17/18
2	102	VCl	Occipital	Lateral Visual Cortex	37/19/18
3	103	VCs	Occipital	Superior Visual Cortex	19/39
4	104	Cu	Occipital	Cuneus	18/19
5	105	VCrm	Occipital	Rostral Medial Visual Cortex	18/19
6	106	ITCm	Temporal	Medial Inferior Temporal Cortex	36/37/20
7	107	ITCr	Temporal	Rostral Inferior Temporal Cortex	20
8	108	MTCc	Temporal	Caudal Middle Temporal Cortex	21/22/39
9	109	STCc	Temporal	Caudal Superior Temporal Cortex	22/41/42
10	110	STCr	Temporal	Rostral Superior Temporal Cortex	21/22/38
11	111	MTCr	Temporal	Rostral Middle Temporal Cortex	20/21/38
13	113	IPCv	Parietal	Ventral Inferior Parietal Cortex	40
14	114	IPCd	Parietal	Dorsal Inferior Parietal Cortex	39/40/7
15	115	SPC	Parietal	Superior Parietal Cortex	7
16	116	SPCm	Parietal	Medial Superior Parietal Cortex	7
17	117	PCm	Parietal	Medial Parietal Cortex	31
19	119	Sv	Parietal	Ventral Somatosensory Cortex	1/2/3
20	120	Sdl	Parietal	Dorsolateral Somatosensory Cortex	1/2/3
21	121	Sdm	Parietal	Dorsomedial Somatosensory Cortex	1/2/3/5/31
12	112	ICC	Cingular	Isthmus Cingulate Cortex	30
18	118	PCC	Cingular	Posterior Cingulate Cortex	23
30	130	MCC	Cingular	Mid Cingulate Cortex	24
40	140	ACC	Cingular	Anterior Cingulate Cortex	24/32
22	122	Mv	Frontal	Ventral Motor Cortex	4/6
23	123	Mdl	Frontal	Dorsolateral Motor Cortex	4
24	124	Mdm	Frontal	Dorsomedial Motor Cortex	4
25	125	PMrv	Frontal	Rostral Ventral Premotor Cortex	44/45
26	126	PMdl	Frontal	Dorsolateral Premotor Cortex	6/8
27	127	PMdm	Frontal	Dorsomedial Premotor Cortex	6
28	128	PFcdl	Frontal	Caudal Dorsolateral Prefrontal Cortex	45/46/9
29	129	PFcdm	Frontal	Caudal Dorsomedial Prefrontal Cortex	6/8
31	131	PFrvl	Frontal	Rostral Ventrolateral Prefrontal Cortex	47/45
32	132	Pfrdli	Frontal	Rostral Dorsolateral Inferior Prefrontal Cortex	10/46
33	133	Pfrdls	Frontal	Rostral Dorsolateral Superior Prefrontal Cortex	10/9
34	134	PFrd	Frontal	Rostral Dorsal Prefrontal Cortex	10/9/8
35	135	PFrm	Frontal	Rostral Medial Prefrontal Cortex	9/8
36	136	OFCvl	Orbito-Frontal	Ventrolateral Orbito Frontal Cortex	11/47
37	137	OFCv	Orbito-Frontal	Ventral Orbito Frontal Cortex	11/47
38	138	OFCvm	Orbito-Frontal	Ventromedial Orbito Frontal Cortex	10/11
39	139	PFCvm	Orbito-Frontal	Ventromedial Prefrontal Cortex	32/10/11
41	141	Insula	Insula	Insular Cortex	13