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Related Experiment Video

Updated: Apr 4, 2026

High-resolution In Vivo Manual Segmentation Protocol for Human Hippocampal Subfields Using 3T Magnetic Resonance Imaging

High-resolution In Vivo Manual Segmentation Protocol for Human Hippocampal Subfields Using 3T Magnetic Resonance Imaging

Published on: November 10, 2015

Topographic CA1 input shapes subicular spatial coding.

Yanjun Sun¹, Daniel T Pederick^2,3, Xiangmin Xu^4,5

¹Department of Neurobiology and Anatomy, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, USA.

Biorxiv : the Preprint Server for Biology

|April 3, 2026

Summary

This summary is machine-generated.

Precise topography in hippocampal circuits organizes spatial maps in the subiculum. Disrupting this organization impairs boundary coding and network stability, highlighting its crucial role.

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Area of Science:

Neuroscience
Computational Neuroscience
Systems Neuroscience

Background:

The hippocampus exhibits topographic organization, but its functional importance is not fully understood.
Spatial coding in the hippocampus is critical for navigation and memory.

Purpose of the Study:

To investigate the functional significance of CA1-to-subiculum topographic projections.
To determine how disrupted topography affects spatial coding and network dynamics in the subiculum.

Main Methods:

Utilized latrophilin-2 conditional knockout mice to selectively disrupt CA1-to-subiculum projections.
Analyzed the anatomical distribution of spatial coding in the subiculum.
Assessed single-cell tuning, boundary vector coding, and long-term network stability.

Main Results:

Disrupted topography altered the anatomical distribution of subicular spatial coding.
Single-cell tuning properties were preserved despite topographic disruption.
Selective impairment of boundary vector coding and long-term network stability was observed.

Conclusions:

CA1 topographic inputs are essential for organizing subicular spatial maps.
Precise topography provides a scaffold for subicular spatial dynamics and network stability.