• Scientists Karl Deisseroth, Peter Hegemann, and Georg Nagel awarded the Nobel Prize in Medicine.
• Their research involves light-gated ion channels and optogenetics, revealing brain activity mechanisms.
• The prize, amounting to 12 million Swedish kronor (approximately $1.2 million), is shared among the winners.
• Deisseroth is based at Stanford University, while Hegemann and Nagel are at universities in Germany.
• This announcement marks the beginning of the Nobel Prize week.

The Nobel Prize in Medicine for 2026 has been awarded to Karl Deisseroth, Peter Hegemann, and Georg Nagel for their significant contributions to understanding how brain mechanisms can switch the activity of individual nerve cells. Their groundbreaking research utilizes light-gated ion channels and optogenetics, methods that enable scientists to manipulate and explore the properties of nerve cells using light, a pivotal development in neuroscience, according to Reuters and NPR.

The Nobel Assembly of Sweden’s Karolinska Institute announced that Deisseroth, aged 54, is affiliated with Stanford University in California, while his fellow awardees, Hegemann (71) and Nagel (73), are based at Humboldt University in Berlin and the University of Würzburg, respectively. The award is celebrated with a prize sum of 12 million Swedish kronor, approximately $1.2 million, which is shared amongst the laureates, as noted by Africanews and NPR.

The committee emphasized the global impact of their work, stating that optogenetics is "now being used in laboratories around the world to reveal the brain's mysteries." This research is poised to facilitate further advancements in our understanding of various neural processes, highlighting the importance of their contributions in modern science, according to Reuters, NPR, and Africanews.

The Nobel Prize ceremony also signals the commencement of the Nobel week, which includes the announcements of other prestigious awards in physics, chemistry, literature, and peace, culminating in the announcement of the Economic Sciences prize on October 12, as highlighted in Reuters and Africanews.