Anatomical Automatic Labeling

Anatomical Automatic Labeling (AAL) is a computer program package and a digital human brain atlas. It is particularly used in research-based human functional neuroimaging, where it is used to obtain a neuroanatomical label to a given coordinate in the human brain.

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It is developed by a French research group based in Caen, and it is described further in the following scientific article:

• N. Tzourio-Mazoyer, B. Landeau, D. Papathanassiou, F. Crivello, O. Etard, N. Delcroix, Bernard Mazoyer and M. Joliot (January 2002). "Automated Anatomical Labeling of activations in SPM using a Macroscopic Anatomical Parcellation of the MNI MRI single-subject brain". NeuroImage 15 (1): 273–289. doi:10.1006/nimg.2001.0978. PMID 11771995.

The computer program package is dependent upon the Matlab and SPM programs.

The AAL digital human brain atlas is also available independent from the AAL computer program, e.g., in the MRIcro program.