AICHA (Atlas of Intrinsic Connectivity of Homotopic Areas) a functional brain ROIs atlas based on resting-state fMRI data acquired in 281 individuals. AICHA ROIs cover the whole cerebrum, each having 1- homogeneity of its constituting voxels intrinsic activity, and 2- a unique homotopic contralateral counterpart with which it has maximal intrinsic connectivity.



AICHA version1 (Dec 2015) for SPM12 :

AICHA version2 (Jun 2021) for SPM12 :

User Guide


Original reference

AICHA : An atlas of intrinsic connectivity of homotopic areas. Joliot M, Jobard G, Naveau M, Delcroix N, Petit L, Zago L, Crivello F, Mellet E, Mazoyer B & Tzourio-Mazoyer N (2015) . Journal of Neuroscience Methods 10.1016/j.jneumeth.2015.07.013.