Controlling the Brain with Light—How Does It Work?

According to estimates, the human brain consists of about 86 billion nerve cells. It forms a complex yet precise system that is responsible for our daily actions. It’s no wonder that researchers have long been interested in deciphering this system.

Optogenetics uses a light-sensitive “switch” derived from algae, offering researchers entirely new possibilities. It allows them to selectively activate nerve cells using light and observe the immediate effects.

Researchers are now applying optogenetics to a wide variety of organisms. Their approach is to transfer observations from simpler to more complex systems and, in this way, develop therapeutic approaches for neurological disorders in humans, for example.

What can you expect from the lecture?

Dr. Elisabeth Maluck, a biochemist with a Ph.D. in neurobiology, explains the scientific background of this award-winning discovery. In an accessible way and without complicated technical jargon, she will demonstrate how optogenetics works and what possibilities it opens up for medical research. Drawing on her own research, she will share her experiences with how nerve cells can be selectively activated and deactivated using light.

The lecture is part of the event series “Outstanding Ideas. Simply Explained,” which makes the 2026 Nobel Prizes and the research behind them accessible to anyone interested.

No prior knowledge is required. Afterward, there will be an opportunity to ask questions and engage in conversation with one another.

About the Speaker

Dr. Elisabeth Maluck earned her Bachelor’s and master’s degrees in biochemistry with a focus on plant science. She completed her Ph.D. in neurobiology, studying sleep mechanisms in nematodes. In her research, she used optogenetics to selectively activate and deactivate nerve cells during and outside of sleep phases and to investigate the effects on the nervous system and behavior.

Today, she works in Quality management at a medical technology company in Görlitz. She supports the development and market approval of new blood tests for determining immune status by planning, evaluating, and documenting the necessary tests. She hopes to share her curiosity about biological processes and her enthusiasm for the natural sciences with a broad audience.

Registration and Participation

The event is open to the public and is aimed at anyone curious about current scientific discoveries.

We would appreciate your registration so we can better plan the event. Of course, you are also welcome to attend without prior registration.