HarvardOxford cort maxprob thr25 1mm Atlas

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Overview

The Harvard-Oxford Cortical Maximum Probability (maxprob) thr25 1mm brain atlas is a probabilistic, macro-anatomical parcellation of the cerebral cortex into gyral-based regions derived from structural MRI scans of healthy adult volunteers, originally collected and manually labeled at the Center for Morphometric Analysis at Massachusetts General Hospital and distributed via the FMRIB Software Library (FSL). Cortical regions were delineated based on visible sulcal and gyral landmarks on high-resolution T1-weighted images, then transformed into a standard space (MNI152) and combined across subjects to produce voxelwise probability maps; the “maxprob thr25 1mm” variant contains, at 1 mm isotropic resolution, a single label per voxel corresponding to the cortical region with the highest probability, with voxels only assigned if that region’s probability is at least 25%. This atlas is widely used in functional and structural MRI research for anatomical labeling of activation clusters, region-of-interest definition, reporting of results in standardized anatomical terms, and for cross-study comparability in human neuroimaging. Atlas Website

Overview generated by GPT-4o (2026).

Click any region name to view its full visualization and description.

ID Acronym Region
1 Frontal Pole frontal pole_bilateral
2 Insular Cortex insular cortex_bilateral
3 Superior Frontal Gyrus superior frontal gyrus_bilateral
4 Middle Frontal Gyrus middle frontal gyrus_bilateral
5 Inferior Frontal Gyrus, pars triangularis inferior frontal gyrus, pars triangularis_bilateral
6 Inferior Frontal Gyrus, pars opercularis inferior frontal gyrus, pars opercularis_bilateral
7 Precentral Gyrus precentral gyrus_bilateral
8 Temporal Pole temporal pole_bilateral
9 Superior Temporal Gyrus, anterior division superior temporal gyrus, anterior division_bilateral
10 Superior Temporal Gyrus, posterior division superior temporal gyrus, posterior division_bilateral
11 Middle Temporal Gyrus, anterior division middle temporal gyrus, anterior division_bilateral
12 Middle Temporal Gyrus, posterior division middle temporal gyrus, posterior division_bilateral
13 Middle Temporal Gyrus, temporooccipital part middle temporal gyrus, temporooccipital part_bilateral
14 Inferior Temporal Gyrus, anterior division inferior temporal gyrus, anterior division_bilateral
15 Inferior Temporal Gyrus, posterior division inferior temporal gyrus, posterior division_bilateral
16 Inferior Temporal Gyrus, temporooccipital part inferior temporal gyrus, temporooccipital part_bilateral
17 Postcentral Gyrus postcentral gyrus_bilateral
18 Superior Parietal Lobule superior parietal lobule_bilateral
19 Supramarginal Gyrus, anterior division supramarginal gyrus, anterior division_bilateral
20 Supramarginal Gyrus, posterior division supramarginal gyrus, posterior division_bilateral
21 Angular Gyrus angular gyrus_bilateral
22 Lateral Occipital Cortex, superior division lateral occipital cortex, superior division_bilateral
23 Lateral Occipital Cortex, inferior division lateral occipital cortex, inferior division_bilateral
24 Intracalcarine Cortex intracalcarine cortex_bilateral
25 Frontal Medial Cortex frontal medial cortex_bilateral
26 Juxtapositional Lobule Cortex (formerly Supplementary Motor Cortex) juxtapositional lobule cortex (formerly supplementary motor cortex)_bilateral
27 Subcallosal Cortex subcallosal cortex_bilateral
28 Paracingulate Gyrus paracingulate gyrus_bilateral
29 Cingulate Gyrus, anterior division cingulate gyrus, anterior division_bilateral
30 Cingulate Gyrus, posterior division cingulate gyrus, posterior division_bilateral
31 Precuneous Cortex precuneous cortex_bilateral
32 Cuneal Cortex cuneal cortex_bilateral
33 Frontal Orbital Cortex frontal orbital cortex_bilateral
34 Parahippocampal Gyrus, anterior division parahippocampal gyrus, anterior division_bilateral
35 Parahippocampal Gyrus, posterior division parahippocampal gyrus, posterior division_bilateral
36 Lingual Gyrus lingual gyrus_bilateral
37 Temporal Fusiform Cortex, anterior division temporal fusiform cortex, anterior division_bilateral
38 Temporal Fusiform Cortex, posterior division temporal fusiform cortex, posterior division_bilateral
39 Temporal Occipital Fusiform Cortex temporal occipital fusiform cortex_bilateral
40 Occipital Fusiform Gyrus occipital fusiform gyrus_bilateral
41 Frontal Operculum Cortex frontal operculum cortex_bilateral
42 Central Opercular Cortex central opercular cortex_bilateral
43 Parietal Operculum Cortex parietal operculum cortex_bilateral
44 Planum Polare planum polare_bilateral
45 Heschl’s Gyrus (includes H1 and H2) heschl’s gyrus (includes h1 and h2)_bilateral
46 Planum Temporale planum temporale_bilateral
47 Supracalcarine Cortex supracalcarine cortex_bilateral
48 Occipital Pole occipital pole_bilateral

Citation

Wali Sidiqyar*, Gaurav Rudravaram*, Elyssa M. McMaster, Trent M. Schwartz, Adam M. Saunders, Kurt G. Schilling, Bennett A. Landman "Introducing SPINS: A Shared Public Visualization Library of Neuroanatomical Structures." Medical Imaging with Deep Learning- short paper

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