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[http://www.fz-juelich.de/inb/inb-3/Home Institute of Neurosciences and Biophysics (INB)] have created an atlas of a subset of the Brodmann Areas, for usage in Freesurfer for automated parcellation. | [http://www.fz-juelich.de/inb/inb-3/Home Institute of Neurosciences and Biophysics (INB)] have created an atlas of a subset of the Brodmann Areas, for usage in Freesurfer. |
Brodmann Area Maps (BA Maps)
The [http://www.nmr.mgh.harvard.edu/martinos/noFlashHome.php Martinos Center for Biomedical Imaging] and the [http://www.fz-juelich.de/inb/inb-3/Home Institute of Neurosciences and Biophysics (INB)] have created an atlas of a subset of the Brodmann Areas, for usage in Freesurfer.
Download
Note: maps are for neuroscientific purposes only! (no commercial use)
BA Labels
The following labels [https://surfer.nmr.mgh.harvard.edu/pub/dist/ba_labels_fsaverage.tar.gz are available for download] and display on the 'fsaverage' surface distributed with Freesurfer:
BA 1 - somatosensory area
BA 2 - somatosensory area
BA 3a - somatosensory area
BA 3b - somatosensory area
BA 4a - primary motor area (anterior)
BA 4p - primary motor area (posterier)
BA 6 - pre-motor area
BA 44 - Broca's area (pars opercularis)
BA 45 - Broca's area (pars triangularis)
V1 (BA 17) - primary visual area
V2 (BA 18) - secondary visual area
MT
Copy the file [http://surfer.nmr.mgh.harvard.edu/pub/dist/ba_labels_fsaverage.tar.gz ba_labels_fsaverage.tar.gz] to your $FREESURFER_HOME/subjects/fsaverage/labels directory, then type tar zxvf ba_labels_fsaverage.tar.gz to extract. To view a label, open an inflated surface (tksurfer fsaverage lh inflated) and then select File->Label->Load Label and select a label (lh.BA1.label, for example). Then select Tools->Labels->Copy Label Statistics to Overlay. Then select View->Configure->Overlay and set Min threshold to 0 and Max threshold to 0.5, and also select Linear threshold, and then press Apply and Close. The label should appear on the surface (you will probably need to press the Redraw button). Only one label at a time can be displayed. The labels show the frequency estimates of the probability that each (displayed) point was part of that BA.
BA Atlas
A probabilistic atlas for use in automatic cortical parcellation of these areas will be available at a future date.
V1 Atlas
Data and scripts [http://surfer.nmr.mgh.harvard.edu/pub/dist/V1_average.1.0.tgz are available here] to allow prediction of location V1 on a Freesurfer subject based on a probabilistic atlas. See [http://surfer.nmr.mgh.harvard.edu/pub/dist/V1_average.README.txt the README file] for instructions. See the O. Hinds paper 'Accurate prediction of V1 location from cortical folds in a surface coordinate system', in References below, for details.
References
[https://surfer.nmr.mgh.harvard.edu/ftp/articles/ba_maps2007.pdf Cortical Folding Patterns and Predicting Cytoarchitecture], Fischl, B., N. Rajendran, E. Busa, J. Augustinack, O. Hinds, B.T.T. Yeo, H. Mohlberg, K. Amunts, K. Zilles, (2007). Cerebral Cortex 2007, doi:10.1093/cercor/bhm225.
[https://surfer.nmr.mgh.harvard.edu/ftp/articles/hinds2007accurate.pdf Accurate prediction of V1 location from cortical folds in a surface coordinate system], Hinds, O.P., N. Rajendran, J.R. Polimeni, J.C. Augustinack, G. Wiggins, L.L. Wald, H.D. Rosas, A. Potthast, E.L. Schwartz and B. Fischl (2007). NeuroImage 2007.10.033.
- Quantitative analysis of cyto- and receptor architecture of the human brain, Zilles K, Schleicher A, Palomero-Gallagher N, Amunts K (2002). Brain Mapping: The Methods, edited by J. C. Mazziotta and A. Toga, USA: Elsevier, 2002, p. 573-602.
Cytoarchitecture of the cerebral cortex - more than localization, Amunts K, Schleicher A, Zilles K (2007). NeuroImage 37:1061-1065.
- Towards multimodal atlases of the human brain, Toga AW, Thompson PM, Mori S, Amunts K, Zilles K (2006). Nature Neuroscience Reviews, 7(12):952-966.
- Gender-specific left-right asymmetries in human visual cortex, Amunts K, Armstrong E, Malikovic A, Hoemke L, Mohlberg H, Schleicher A, Zilles K (2007). The Journal of Neuroscience, 27(6):1356-1364.