All subjects underwent magnetic resonance imaging scans, which the researchers analyzed with specialized software to reveal differences in the volume of brain structures. (sciencemag.org)
All the volunteers were assessed using a standard battery of cognitive tests, plus brain imaging scans, before and after the 10 - week period. (newscientist.com)
Each participant, ranging from 7 - 32 years of age, had repeated imaging scans over the course of several years. (sciencedaily.com)