The award was reported on October 5, 2026, by international sources that identified the three scientists as the winners of the prize in Physiology or Medicine.
The recognition concerns discoveries on light-gated ion channels and optogenetics, the field of research identified in reports by Deutsche Welle and The Japan Times.
Optogenetics has provided tools and knowledge for studying brain activity. According to Deutsche Welle, this approach has opened up research prospects linked to possible treatments for blindness, depression, addiction and dementia.
RFI describes Karl Deisseroth as an American psychiatrist and neurologist, while Peter Hegemann and Georg Nagel are presented as his German colleagues.
In economic terms, Tagesschau reports that the three laureates will each receive one-third of the cash prize.
The sources therefore agree on the award being given to the three researchers and on the role of optogenetics in the recognition. However, the available information does not include an official statement from the Nobel Committee or specify the location of the ceremony.