Moser Group

Moser Group

Kavli Institute's Space and memory Group

Kavli Institute's Space and memory Group


Research activity

LATEST RESEARCH: TIME AND MEMORY

A jumping brain signal that bookmarks our experiences

Memories are the brain’s map of time

 

Our brain doesn’t merely register time – it structures it, new research from the Kavli Institute for Systems Neuroscience shows.

The research team led by NTNU’s Nobel Laureates May-Britt and Edvard Moser, from the Kavli Institute for Systems Neuroscience, is already known for their discovery of the brain’s sense of place.

Now they have shown that the brain also weaves a tapestry of time: The brain segments and organizes events into experiences, placing unique bookmarks on them so that our lives don’t become a blurry stream, but rather a series of meaningful moments and memories we can revisit and learn from.

We live in a continuous stream of fleeting sensory information. How do we manage to select and segment this stream of reality into meaningful experiences we carry forward in life?

The NTNU researcher have found a “jumping” answer in a new study published in Science.

Read more about this discovery here!
 

Artistic illustration of a human brain with rows of episodic events forming memories

Researchers from the Kavli Institute for Systems Neuroscience have shown that the brain segments and organizes events into experiences, placing unique bookmarks on them. That keeps our lives from becoming a blurry stream, and is instead a series of meaningful moments and memories we can revisit and learn from. Illustration: Astrid Strømmen/NTNU

 

The study was carried out by Ben Kanter (first author), Christine Marie Lykken, Ignacio Polti, May-Britt Moser (senior author), and Edvard Moser (senior author) from the Moser Group at the Kavli Institute for Systems Neuroscience, NTNU.

Reference: Benjamin R. Kanter et al., Event structure sculpts neural population dynamics in the lateral entorhinal cortex. Science 388, eadr0927 (2025).  https://doi.org/10.1126/science.adr0927


LATEST RESEARCH: SPACE AND NAVIGATION

For Twenty Years, Grid Cells Kept a Secret

LATEST RESEARCH: SPACE AND NAVIGATION

A breakthrough discovery at the Kavli Institute in Norway has uncovered a previously unknown function of grid cells, the specialized neurons that help the brain map space.

Discovered in 2005 by May-Britt and Edvard Moser, grid cells lay the foundation for building mental maps of your surroundings and for tracking your precise positions within these landscapes. As you move around your environment, your movements are being followed by grid cells on an internal map.

But now it turns out that grid cells also perform rapid, rhythmic sweeps into the space ahead of the animal. These sweeps act almost like an antenna, allowing the animal to probe the environment ahead of it. This revelation reshapes our understanding of spatial navigation in the brain.



Ten times per second, grid cells send sweeping probes into the space in front of the rat, in a very regular pattern. Alternately 30 degrees to the right and 30 degrees to the left. Illustration: Rita Elmkvist Nilsen / Kavli Institute / NTNU


Read the full story here:
Sweeps: For Twenty Years, Grid Cells Kept a Secret


Reference:
Vollan, A.Z., Gardner, R.J., Moser, MB. et al. Left–right-alternating theta sweeps in entorhinal–hippocampal maps of space. Nature (2025). https://doi.org/10.1038/s41586-024-08527-1


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