Neurons in the brain of a transgenic mouse engineered to express a protein that emits light when neurons become active. Image: Qian Chen, Guoping Feng Home | News | Brain Scan Cover Image: Fall 2012 Brain Scan Cover Image: Fall 2012 Anne Trafton | January 2, 2013May 24, 2023 Facebook Twitter Linkedin Email Neurons in the brain of a transgenic mouse engineered to express a protein that emits light when neurons become active. Image: Qian Chen, Guoping Feng Neurons in the brain of a transgenic mouse engineered to express a protein that emits light when neurons become active. Image: Qian Chen, Guoping Feng What is consciousness? Women in STEM — A celebration of excellence and curiosity From neurons to learning and memory See all news