Research and teaching that educates leaders and helps solve global challenges.

Stanford, CA
Joined January 2009
Congratulations to Stanford Bioengineering Professor @KarlDeisseroth for winning the Nobel Prize in physiology or medicine. His pioneering advancements in optogenetics and neuroscience have transformed the study of brain function and behavior. @StanfordMed @bioe_stanford
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“We don’t say, how can we use an existing tool well? We look at the problem and say, how can we make a new tool that will allow us to answer questions much, much more effectively?” It’s how @KarlDeisseroth and his colleagues developed optogenetics.
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Deisseroth, a Stanford professor of bioengineering and of psychiatry and behavioral sciences, shared the 2026 Nobel Prize in Physiology or Medicine with two others for their work in optogenetics. @bioe_stanford is jointly run by the School of Engineering and @StanfordMed.
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Stanford’s @KarlDeisseroth knew that understanding the brain would take more than understanding its chemistry. He joined @bioe_stanford to work with people who could build tools to advance brain science. “I don't think I could have done what we did anywhere else, really.”
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Deisseroth, a Stanford professor of bioengineering and of psychiatry and behavioral sciences, shared the 2026 Nobel Prize in Physiology or Medicine with two others for their work in optogenetics. @bioe_stanford is jointly run by the School of Engineering and @StanfordMed.
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Nobel laureate @KarlDeisseroth came to neuroscience through words. His love of literature and writing drew him toward the human brain, and a required psychiatry rotation in medical school set him on the path to developing optogenetics. Here, he traces that journey.
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Deisseroth, a Stanford professor of bioengineering and of psychiatry and behavioral sciences, shared the 2026 Nobel Prize in Physiology or Medicine with two others for their work in optogenetics. @bioe_stanford is jointly run by the School of Engineering and @StanfordMed.
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Stanford Engineering retweeted
“There is a big picture that brings it all into relief and my hope is that we can increase empathy and understanding,” says 2026 medicine laureate Karl Deisseroth. As a medical student, Deisseroth completed part of his training at a psychiatric clinic. He was struck by the patients’ suffering and their need for help. At the same time, he began to wonder how the brain could function so differently from one person to another. Deisseroth was awarded this year's medicine prize, together with Peter Hegemann and Georg Nagel, for discoveries leading to optogenetics – a biological technique making it possible to switch the activity of individual nerve cells in a living brain on or off. Optogenetics is now helping us understand more about how nerve cells shape memories, emotions and behaviour in the living brain. Learn more about the 2026 medicine prize: bit.ly/4ru82ml
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Stanford Engineering retweeted
Thanks to everyone sharing in this moment! I’m so grateful to my trainees & collaborators… dlab.stanford.edu/group-memb… (pic: optogenetics conference chairs, Tuscany) Reading for all those asking: for technical details: dlab.stanford.edu for everyone: deisseroth.org/projections
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Stanford Engineering retweeted
The most important briefings of the day. Karl Deisseroth, professor of bioengineering and of psychiatry and behavioral sciences, shares the news of his Nobel Prize with his kids.
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Stanford Engineering retweeted
Karl Deisseroth, MD, PhD, a Stanford University professor of bioengineering and of psychiatry and behavioral sciences, has been awarded the 2026 Nobel Prize in physiology or medicine “for discoveries leading to optogenetics, which makes it possible to switch on, or off, the activity of individual nerve cells in a living brain.” stanford.io/4xY9K0D @StanfordEng @Stanford @bioe_stanford @NobelPrize
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Stanford Engineering retweeted
"I was not yet asleep being a night owl. And now I don't think I'll be able to sleep for quite a while!" Today psychiatrist and scientist Karl Deisseroth learned he had been awarded the 2026 Nobel Prize in Physiology or Medicine. We found out his first reaction to the news.
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Stanford Engineering retweeted
2026 #NobelPrize laureate in physiology or medicine Karl Deisseroth was born in 1971. He received his Ph.D. and MD from @Stanford University, USA. He is currently D.H. Chen Professor, Professor of Bioengineering and of Psychiatry and Behavioral Sciences, at the Howard Hughes Medical Institute and Stanford University, USA. med.stanford.edu/profiles/ka… #NobelPrize
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Stanford Engineering retweeted
Congratulations to our first #NobelPrize laureate of 2026 🎉 Early this morning Karl Deisseroth found out he was awarded this year's Nobel Prize in Physiology or Medicine. He seems very happy with the news!
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Stanford Engineering retweeted
BREAKING NEWS The 2026 #NobelPrize in Physiology or Medicine has been awarded to Karl Deisseroth, Peter Hegemann and Georg Nagel “for their discoveries concerning light-gated ion channels and optogenetics.”
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Stanford Engineering retweeted
Congratulations to Karl Deisseroth, winner of the 2026 Nobel Prize in physiology or medicine. The @StanfordMed & @StanfordEng professor of bioengineering and of psychiatry and behavioral sciences is a pioneering developer of optogenetics, a technique that uses light to control the behavior of cells.
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Linguist and computer scientist, Dan Jurafsky, explores overly affirming AI along with PhD student, Myra Cheng. Learn more about this research: stanford.io/4m1K13e
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