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HOutliers are data values that are very different from other values in the same time series
åto3d reports sub-bricks (time points) that have a lot of outliers
åYou should use AFNI to look at these time points to see if there are major problems (e.g., head motion, scanner artifacts)
åto3d -skip_outliers option lets you skip the outlier detection step
åUtility program 3dToutcount can also report outliers and can even make a dataset with the Ôoutlier-nessÕ of each voxel value
Created with The GIMP
Sample data time series with potential outlier