We have created movies of changes in cortical thickness over development by analyzing scans acquired longitudinally from the same individuals. One such animation derived from scans of 13 subjects who had each undergone scanning four times at approximately 2-year intervals between the ages of four and 22 is available at http://www.nimh.nih.gov/videos/press/prbrainmaturing.mpeg. Still images of the movie at different ages are seen in Fig. 3.
