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Controlling the brain with light earns a physiology Nobel

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Based on a feed excerpt; full article content has not been acquired. Source evidence retrieved 05/10/2026, 19:43:24 UTC.

Briefings

The 2026 Nobel Prize in Physiology or Medicine was awarded to Karl Deisseroth, Peter Hegemann, and Georg Nagel for developing optogenetics, a technique using light to control specific neurons via genetically marked genes. This breakthrough allows researchers to activate or inhibit nerve cells in intact brains, offering a more informative method than genetic deletion, which can alter development if applied early. The research originated from studying single-celled algae attracted to light, evolving into a field that now enables precise neural manipulation. The evidence indicates that while this technology is powerful, it faces limitations regarding brain flexibility and early developmental impacts, suggesting future studies must account for these factors.

Key points

• The Nobel Prize was awarded to Karl Deisseroth, Peter Hegemann, and Georg Nagel for developing optogenetics, a technique using light to control neurons marked by specific genes.
• Optogenetics allows researchers to activate or inhibit nerve cells in intact brains, providing more informative data than genetic deletion, which can alter development if applied early.

Context and limitations

The evidence indicates that the brain's flexibility may limit the effectiveness of early developmental interventions, and further research is needed to fully understand the long-term impacts of such manipulations.

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