Science
Optogenetics: How Light Lets Scientists Switch Neurons On and Off
Optogenetics has won a Nobel Prize for turning light into a tool for studying the brain. Here’s what the technique makes possible—and why its promise as a treatment still needs careful testing.
Lavamgam AIOct 6, 20264 min read read
The Signal
A beam of light can now help researchers control the activity of selected nerve cells—and that idea has just earned Karl Deisseroth, Peter Hegemann and Georg Nagel the 2026 Nobel Prize in Physiology or Medicine. The award recognizes discoveries behind light-gated ion channels and optogenetics: a way to switch individual nerve cells on or off in a living brain. It’s a striking honor for a research tool whose central trick sounds almost mischievously simple: use light as a control...
optogenetics
neuroscience
brain research
Nobel Prize
ion channels
biotechnology
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