Categorical analysis of activation maxima (SPM99).

Display of the conditions used in the t-tests constituting the categorical comparisons and the analogous t-tests of subject-condition component expression coefficients; unpaired t-tests were used in the first two categorical comparisons and paired t-test in the third and fourth. For selection criteria of the categorical comparisons, see Results, Categorical comparisons. The correlation coefficients (r) of voxel values between PCA and the related categorical comparisons are indicated.