The Thalamus maxprob thr25 1mm brain atlas is a probabilistic, cytoarchitectonically informed parcellation of the human thalamus that subdivides the structure into major nuclei (e.g., mediodorsal, ventral anterior, ventral lateral, ventral posterior, intralaminar, and pulvinar subdivisions) based on post-mortem histological analyses mapped into standard MNI space at 1 mm isotropic resolution. It was derived by aligning and segmenting multiple human brains, labeling thalamic subnuclei from microscopic staining, then converting these labels into probabilistic maps and collapsing them into a maximum-probability (“maxprob”) atlas using a 25% threshold (thr25), such that only voxels with at least 25% agreement across subjects are retained for each nucleus. This atlas is widely used in structural and functional MRI research to define thalamic regions of interest, interpret connectivity patterns, examine nucleus-specific functional specialization, and guide surgeries or deep-brain stimulation targeting by providing a standardized, nucleus-level thalamic reference in neuroimaging pipelines. There is no direct link to the website.
Overview generated by GPT-4o (2026).
Click any region name to view its full visualization and description.
| ID | Acronym | Region |
|---|---|---|
| 1 | Primary motor | primary motor_bilateral |
| 2 | Sensory | sensory_bilateral |
| 3 | Occipital | occipital_bilateral |
| 4 | Pre-frontal | pre-frontal_bilateral |
| 5 | Pre-motor | pre-motor_bilateral |
| 6 | Posterior parietal | posterior parietal_bilateral |
| 7 | Temporal | temporal_bilateral |
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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