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Related Experiment Video

Updated: Jul 8, 2026

A Fully Automated Rodent Conditioning Protocol for Sensorimotor Integration and Cognitive Control Experiments

A Fully Automated Rodent Conditioning Protocol for Sensorimotor Integration and Cognitive Control Experiments

Published on: April 15, 2014

Task-anchored grid cell firing is selectively associated with successful path integration-dependent behaviour.

Harry Clark¹, Matthew F Nolan¹

¹Centre for Discovery Brain Sciences, Simons Initiative for the Developing Brain, Hugh Robson Building, University of Edinburgh, Edinburgh, United Kingdom.

|March 28, 2024

Summary

Grid cells in the brain may help with navigation. Their anchoring to environments enhances performance when relying on path integration, but not when visual cues are present.

Keywords:

entorhinal cortex grid cell mouse neuroscience spatial cognition spatial memory

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Area of Science:

Neuroscience
Cognitive Science
Spatial Navigation

Background:

Grid firing fields are hypothesized neural substrates for spatial localization or path integration.
Distinguishing between these roles requires investigating grid cell firing in relation to behavioral tasks.

Purpose of the Study:

To investigate the firing patterns of grid and non-grid cells in the mouse medial entorhinal cortex during a location memory task.
To determine whether grid cell firing is anchored to the task environment or encodes distance independently.
To evaluate the contribution of grid cell representations to behavior under different cueing conditions.

Main Methods:

Recorded firing of grid and non-grid cells in the mouse medial entorhinal cortex.
Utilized a location memory task with varying environmental cues (visual cue present or absent).
Analyzed the relationship between grid cell anchoring to the task environment and behavioral performance.

Main Results:

Grid firing exhibited variable anchoring to the task environment or encoded distance independently.
Non-grid cell spatial firing was either coherent with grid cells or stably anchored to the environment.
Behavioral performance was unaffected by grid cell anchoring when visual cues were present.
Performance was enhanced when grid cells were anchored to the task environment in the absence of visual cues.

Conclusions:

Grid cell anchoring to task reference frames selectively enhances performance when path integration is required.
Grid cell representations are not essential for location encoding when external cues are available.
Findings suggest a context-dependent role for grid cells in spatial cognition and navigation.