Manish Vaidya, associate professor in the University of North Texas Department of Behavior Analysis, and graduate student Maria Otero are using a motion monitoring computer program to teach young children to stay mostly motionless during radiation treatments for cancer. They are currently testing the technology on healthy children.

Watch the 1-minute video from NBC 5 News: UNT Program Could Help Children During Radiation.

While radiation therapy is the most common cancer treatment for children under age 10, preparation for it may cause great stress for a child and...