Dr Karl Deisseroth had barely begun processing the news that he had won the 2026 Nobel Prize in Physiology or Medicine when an ordinary family responsibility came into view.
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responsibility → begin → view
The Stanford University professor and California scientist had spent the early hours speaking with journalists and receiving congratulatory calls after the announcement.
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professor → spend → announcement
Then he needed to step away and prepare school lunches for his children.
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he → need → children
The small domestic task came after a night of major scientific recognition for work that has changed how researchers study the living brain.
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researchers → come → brain
According to AP News, Deisseroth was due to make the lunches after his children woke up.
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children → accord → lunches
The California scientist made school lunches after winning a Nobel Prize
Deisseroth, 54, shared the 2026 Nobel Prize in Physiology or Medicine with German researchers Peter Hegemann and Georg Nagel.
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Deisseroth → make → researchers
Their work on optogenetics helped create a way of using light to control activity in specific brain cells.
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work → help → cells
AP News reported that the three scientists were recognised for research into light-gated ion channels and optogenetics, a field that has become an important tool for studying the brain.
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that → report → brain
The Nobel announcement came early on Monday, 5th October, while Deisseroth was at his home in Stanford, California.
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Deisseroth → come → Stanford
The Associated Press reported that he had been working late before the call arrived from the Nobel Assembly in Stockholm.
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call → report → Stockholm
Deisseroth is known for being a night owl, and the timing of the announcement fitted his usual routine.
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timing → know → routine
The Nobel call came just as he was settling between wakefulness and sleep, leaving him unsure for a moment whether the news was real.
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news → come → moment
In an interview reported by NPR affiliate KLCC, he described the experience as disorienting and unexpected.
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he → report → experience
The Nobel news quickly turned the family's Stanford home into an unusually busy place.
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news → turn → place
According to AP News, an Associated Press photographer arrived at around 3:30 a.m. and initially saw only one light on inside, with Halloween decorations outside.
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light → accord → decorations
Deisseroth's wife, Dr Michelle Monje-Deisseroth, answered the door and welcomed the photographer inside.
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wife → answer → photographer
While her husband took calls from the sofa, she helped make coffee for Stanford communications staff who had joined the early-morning celebration.
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who → take → celebration
Yet the most relatable part of the morning came after the interviews.
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part → come → interviews
Deisseroth told Stanford staff that he needed an hour-long break beginning at 6:30 a.m. His children would soon wake up and need lunch before heading to school.
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children → tell → school
AP confirmed that this was the point when the newly announced Nobel laureate had to turn his attention from international recognition to a familiar morning responsibility.
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laureate → confirm → responsibility
The moment offered a striking contrast without diminishing the importance of his achievement.
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moment → offer → achievement
Deisseroth had spent the night discussing a discovery that has reshaped the study of brain activity, yet his immediate schedule still included one of the everyday jobs of family life.
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schedule → spend → life
His wife appeared equally unfazed by the unusual night.
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wife → appear → night
When someone from Stanford wondered whether the neighbours might object to the late-night activity, she pointed out that the family lived in faculty housing and that there were plenty of Nobel laureates in the neighbourhood, according to AP News.
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family → wonder → News
Karl Deisseroth, one of the three recipients of the 2026 Nobel Prize in medicine, talks to his wife Michelle Monje-Deisseroth at home Monday, Oct. 5, 2026.
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Deisseroth → talk → home
Image Credit: AP Photo/Noah Berger
What does optogenetics allow scientists to do
Optogenetics gives researchers a way to control selected cells in the brain with light.
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Optogenetics → allow → light
Rather than simply using light to observe activity, the method allows scientists to make targeted brain cells respond to it.
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cells → use → it
Speaking to NPR through KLCC, Deisseroth explained that researchers can make cells sensitive to light by introducing a gene from single-celled algae.
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cells → speak → algae
That gene produces a light-responsive flow of charged particles, allowing light to create electrical activity in the cells carrying it.
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light → produce → it
This gives researchers much more direct control over particular parts of the brain.
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This → give → brain
The approach has helped scientists examine how individual groups of brain cells contribute to behaviour.
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groups → help → behaviour
Deisseroth explained that actions and priorities are controlled by networks of connected nerve cells, and optogenetics makes it possible to study those circuits more precisely.
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it → explain → circuits
That can help researchers understand why particular behaviours occur and how specific parts of the brain influence them.
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parts → help → them
For Deisseroth, the importance of the work also comes from his medical background.
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importance → come → background
AP News reported that he described himself as both a physician-scientist and a psychiatrist, with patients who have conditions including autism and depression.
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who → report → autism
Importance of this research for patients
The work has already moved beyond lab studies.
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work → move → studies
In the KLCC interview, Deisseroth pointed to its use in people with retinitis pigmentosa, a condition involving the loss of light-sensitive cells through neurodegeneration.
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Deisseroth → point → neurodegeneration
Optogenetics has been used to restore light sensitivity and allow some affected people to see things they could not previously see.
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they → use → things
He also sees a wider possibility for psychiatric medicine.
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He → see → medicine
Understanding which cells matter in a particular brain process could eventually help researchers design treatments aimed at those specific cells.
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researchers → understand → cells
…and 2 more, not listed.
The Aporia
