Using Light to Activate Brain Cells and Influence Behavior (audio) Washington University School of Medicine Share Print E-Mail Loading audio... Caption Scientists at Washington University School of Medicine in St. Louis and the University of Illinois in Urbana-Champaign, developed a tiny, light-emitting device that can activate and control neurons in the brains of mice. The researchers say the tiny device could help them better understand all sorts of complex behaviors. Credit Washington University BioMed Radio Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.