May-Britt Moser receiving her Nobel Prize from His Majesty King Carl XVI Gustaf of Sweden at the Stockholm Concert Hall, 10 December 2014. Copyright © Nobel Media AB 2014
Photo: Alexander Mahmoud

May-Britt Moser after receiving her Nobel Prize at the Stockholm Concert Hall, 10 December 2014.

© Nobel Media AB 2014. Photo: Alexander Mahmoud

May-Britt Moser receiving her Nobel Prize from His Majesty King Carl XVI Gustaf of Sweden. Copyright © Nobel Media AB 2014
Photo: Niklas Elmehed

Nobel Laureates at the Nobel Prize Award Ceremony. From left: Physics Laureates Isamu Akasaki, Hiroshi Amano and Shuji Nakamura; Chemistry Laureates Eric Betzig, Stefan W. Hell and William E. Moerner; Medicine Laureates John O'Keefe and May-Britt Moser. Copyright © Nobel Media AB 2014
Photo: Niklas Elmehed

May-Britt Moser at the Nobel Prize Award Ceremony at the Stockholm Concert Hall, 10 December 2014.

© Nobel Media AB 2014. Photo: Alexander Mahmoud

May-Britt Moser receiving her Nobel Prize. Overview from Nobel Prize Award Ceremony at the Stockholm Concert Hall, 10 December 2014. Copyright © Nobel Media AB 2014
Photo: Alexander Mahmoud

May-Britt and Edvard I. Moser on stag eafter the Nobel Prize Award Ceremony at the Stockholm Concert Hall. Copyright © Nobel Media AB 2014
Photo: Alexander Mahmoud

May-Britt and Edvard I. Moser and their two daughters on stage after the Nobel Prize Award Ceremony at the Stockholm Concert Hall, 10 December 2014. Copyright © Nobel Media AB 2014
Photo: Alexander Mahmoud

Sweden's King Carl XVI Gustaf and May-Britt Moser proceed into the Blue Hall of the Stockholm City Hall for the Nobel Banquet, 10 December 2014.

© Nobel Media AB 2014. Photo: Helena Paulin-Strömberg

Sweden's Prince Daniel and May-Britt Moser at the table of honour at the Nobel Banquet.

© Nobel Media AB 2014. Photo: Helena Paulin-Strömberg

Prince Daniel and May-Britt Moser in an animated discussion during the Nobel Banquet. Copyright © Nobel Media AB 2014
Photo: Niklas Elmehed

Members of the Swedish Royal Family receive the Laureates and their significant others in the Prince's Gallery after the Nobel Banquet. From left to right: John O'Keefe, May-Britt Moser, Her Majesty Queen Silvia, King Carl XVI Gustaf, Edvard I. Moser and and Professor Eileen O'Keefe.

© Nobel Media AB 2014. Photo: Niklas Elmehed

May-Britt and Edvard I. Moser examining their Nobel Medals during their visit to the Nobel Foundation, on 12 December 2014. Copyright © Nobel Media AB 2014
Photo: Alexander Mahmoud

Edvard I. Moser and May-Britt Moser beside a bust of Alfred Nobel's nephew Emanuel Nobel, during their visit to the Nobel Foundation, on 12 December 2014. Copyright © Nobel Media AB 2014
Photo: Alexander Mahmoud

Ten of the thirteen Nobel Laureates of 2014 assembled at the Nobel Foundation in Stockholm on 12 December 2014. From left: Edvard I. Moser, May-Britt Moser, Shuji Nakamura, Stefan W. Hell, Patrick Modiano, Hiroshi Amano, Kailash Satyarthi, Jean Tirole, Eric Betzig and William E. Moerner. Copyright © Nobel Media AB 2014
Photo: Alexander Mahmoud

May-Britt Moser delivering her Nobel Lecture at Aula Medica, Karolinska Institutet in Stockholm, on 7 December 2014.

Copyright © Nobel Media AB 2014

All three Medicine Laureates assembled at the stage of the Aula Medica, Karolinska Institutet in Stockholm, on 7 December 2014.

Copyright © Nobel Media AB 2014

Like many Nobel Laureates before them, May-Britt and Edvard I. Moser autograph a chair at Bistro Nobel at the Nobel Museum in Stockholm, 6 December 2014.

Photo: Janerik Henriksson/TT

May-Britt and Edvard I. Moser presenting their gift to the Nobel Museum's collection: a grid cells lab, during the 2014 Nobel Laureates' Get together on 6 December 2014. Copyright © Nobel Media AB 2014
Photo: Niklas Elmehed

Portrait of May-Britt Moser.

Photo: Geir Mogen/NTNU.

May-Britt Moser, Norwegian University of Science and Technology, after receiving the news about the Nobel Prize.

Photo: Nancy Bazilchuk, NTNU Communication Div. Courtesy; NTNU Trondheim

Nobel Laureate Edvard Moser is received at Trondheim Airport on Tuesday 7 October, after the announcement of the 2014 Nobel Prize in Physiology or Medicine. From left: Stig Slørdah, lDean at NTNU's Faculty of Medicine and the Nobel Laureates May-Britt and Edvard Moser.

Photo: Idun Haugan, NTNU Comm. Div. Courtesy; NTNU Trondheim

Nobel Laureates May-Britt and Edvard Moser at a reception at NTNU Trondheim after the announcement of the 2014 Nobel Prize in Physiology or Medicine.

Photo: Nancy Bazilchuk, NTNU Communication Division Courtesy; NTNU Trondheim

May-Britt Moser in the laboratory. gen/NTNU.

Photo: Geir Mo

May-Britt Moser and Edvard I. Moser studying a brain.

Photo: Geir Mogen/NTNU.

May-Britt Moser and Edvard I. Moser in the laboratory.

Photo: Geir Mogen/NTNU.