Fresh research findings from Moser – Aftenposten

Brain researchers in Trondheim are not resting on their laurels.

During Nobel her speech in Stockholm could May-Britt Moser tell if a fuming fresh findings published tomorrow in the journal of the American Academy of Sciences. Moser pair was appointed members of the academy last year.

Rotta remembers room

Experiments with rats eleven different artificial room in the laboratory showed that rat brain an astonishing ability to remember every single environment. To make the challenge even more difficult for the rat, there was very little that separated the eleven rooms. Despite that, divorced rat clearly between them.

Different cells in the brain center hippocampus was active from the environment to environment. When a rat came back to a familiar environment, was exactly the same cells active as the first time it was there. Rotta “took out the correct map” each time it came into an environment that had previously visited.

Good memory

– This shows that rat brain can operate with at least eleven different maps that are completely interdependent. It bears witness to a memory with high capacity. Perhaps this could be the basis for other types of memories, says May-Britt Moser, to Adressa.no.

That’s stopped at eleven is a coincidence caused that there was room for more artificial environments in the laboratory .

Map Basis

Moser pair was awarded the Nobel Prize for his discovery of grid cells. This is cells in the brain center entorhinal cortex which automatically makes a kind of mathematical mapping of any environment rat is. This happens in a regular pattern, completely independent of the external environment.

Cabinets memories on the map

The research in the fresh publication applies cells in the hippocampus, a neighboring center in the brain. The hippocampus is involved in the generation of memory. The mapping which makes rat hippocampus based on observations beast makes room it is in.

These observations become memories, evidence, which “lays upon” the automatic maps grid cells provide. In this way stock rat individual memories of each individual room.

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Published: 07.des. 2014 4:42 p.m.