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Updated: Jul 12, 2025

Preparation of Parasagittal Slices for the Investigation of Dorsal-ventral Organization of the Rodent Medial Entorhinal Cortex
Published on: March 28, 2012
Lateral entorhinal cortex subpopulations represent experiential epochs surrounding reward
John B Issa1, Brad A Radvansky1, Feng Xuan1
1Department of Neurobiology, Northwestern University, Evanston, IL 60608, USA.
The lateral entorhinal cortex (LEC) in mice encodes distinct neural populations representing goal approach, departure, and reward consumption during navigation. This reward-centric information is crucial for flexible navigation and episodic memory formation.
Area of Science:
- Neuroscience
- Cognitive Science
- Behavioral Science
Background:
- Goal-directed navigation relies on integrating
- "what" (experiential) and "where" (spatial) information.
- The hippocampus is implicated in this integration, receiving spatial data from the medial entorhinal cortex (MEC).
- The neural source and representation of "what" information remain largely uncharacterized.
Conclusions:
- The LEC provides a stable neural code for experiential epochs surrounding reward consumption.
- This reward-centric information from the LEC complements spatial information from the MEC.
- Parallel LEC and MEC representations support episodic memory and flexible goal-directed navigation.
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