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Related Experiment Video

Updated: Dec 23, 2025

Visualization of Cortical Modules in Flattened Mammalian Cortices

Visualization of Cortical Modules in Flattened Mammalian Cortices

Published on: January 22, 2018

Microstructure of a spatial map in the entorhinal cortex.

Torkel Hafting¹, Marianne Fyhn, Sturla Molden

¹Centre for the Biology of Memory, Norwegian University of Science and Technology, 7489 Trondheim, Norway.

|June 21, 2005

Summary

This summary is machine-generated.

Researchers discovered a neural map in the brain

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Last Updated: Dec 23, 2025

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Preparation of Parasagittal Slices for the Investigation of Dorsal-ventral Organization of the Rodent Medial Entorhinal Cortex

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Published on: March 28, 2012

Area of Science:

Neuroscience
Cognitive Science
Spatial Navigation

Background:

Spatial navigation relies on neural algorithms integrating place, distance, and direction.
The precise implementation of these algorithms in cortical microcircuits remains unclear.

Purpose of the Study:

To investigate the neural basis of spatial mapping in the brain.
To identify the functional units and organization of spatial representations in the cortex.

Main Methods:

Electrophysiological recordings in the dorsocaudal medial entorhinal cortex (dMEC) of animals.
Analysis of neural activity in relation to the animal's position within an environment.

Main Results:

Identified 'grid cells' in the dMEC forming a topographically organized neural map.
Demonstrated that grid cells exhibit regular firing patterns corresponding to a triangular grid.
Observed that grid cell spacing and field size vary systematically along the dorsal-to-ventral axis of the dMEC.

Conclusions:

Grid cells in the dMEC form a fundamental component of the brain's spatial map.
This map is based on path integration and can utilize external landmarks but also functions independently.
The findings provide insights into the neural mechanisms underlying spatial cognition and memory.