Jing Wang, Ph.D., research associate professor of Biomedical Informatics, holds his 3-year-old daughter, Alexandra, so she can see a “blue-light” demonstration by graduate student Randy Golovin during last Saturday’s Brain Blast event at Vanderbilt Health One Hundred Oaks. The event, sponsored by the Vanderbilt Brain Institute, attracted about 325 children and 300 adults to a variety of free, hands-on activities directed by 50 volunteers, including Vanderbilt graduate students, postdoctoral fellows and faculty members.