Female athletes who have suffered at least one concussion showed structural differences in the corpus callosum, the structure that connects the two hemispheres of the brain, compared to unconcussed female athletes and other women. The brain images captured 6 months post-concussion suggest long-term changes in the corpus callosum, mainly in the region where it projects to the prefrontal and premotor areas of the brain, as described in an article in Journal of Neurotrauma, a peer-reviewed journal from Mary Ann Liebert, Inc., publishers (http://www.liebertpub.com/).