MNI Coordinates for Sparse Logistic Regression Selected Voxels Weights Classifying Chronic Pain and Normal Individuals.

L = Left; BA = Brodmann Area; S1 = Primary Somatosensory Cortex; IPC = Inferior Parietal Cortex.
*Denotes significance at p<0.05 correcting for multiple comparisons of the number of cross-validation iterations out of 26 a voxel is selected by the sparse logistic regression SLR relative to the distribution of the maximum time a voxel is select by SLR over 1000 permutations of randomly shuffled labels of the subjects in the training set. Note that the five selected weights form three separate clusters of brain regions. The clusters composed of two weights consist of neighboring voxels.