MIT Optogenics: Non Invasive Brain Control (Credit: MIT/Jose-Louis Olivares).

MIT Optogenics: Non Invasive Brain Control (Credit: MIT/Jose-Louis Olivares).

Optogenetics, a technology that allows scientists to control brain activity by shining light on neurons, relies on light-sensitive proteins that can suppress or stimulate electrical signals within cells. This technique requires a light source to be implanted in the brain, where it can reach the cells to be controlled (Credit: MIT/Jose-Louis Olivares).