What question did this study set out to answer?

This research aims to understand the differentiation along the hippocampal long axis concerning memory and seizures.

June 4, 2026Epiliepsy currents/Epilepsy currents0 citationsOpen Access

Hippocampal Long Axis Differentiation in Memory and Seizure Networks

KMKathryn McClainNew York University QNQuynh-Anh NguyenVanderbilt University LSLeigh SepetaGeorge Washington University Hospital

Key Points

This research aims to understand the differentiation along the hippocampal long axis concerning memory and seizures.
Survey of existing literature on hippocampal long-axis differentiation.
Examination of rodent and human hippocampal function in memory and seizure contexts.
Outline of future research pathways for exploring these mechanisms.
The dorsal hippocampus (posterior) is under-appreciated in its role in human memory.
The ventral hippocampus (anterior) is primarily focused on in seizure network research.
Differences in recording practices reveal potential gaps in understanding across species.

Abstract

The structure-function gradient along the hippocampal long axis is recognized but poorly understood. Rodent recordings mainly sample the dorsal hippocampus (posterior), while surgical recordings in epilepsy patients typically sample from the ventral hippocampus (anterior), because of greater known involvement in seizure networks. These divergent recording practices imply that the mechanisms of rodent spatial navigation may not directly apply to human episodic memory. In general, the role of the posterior hippocampus in human memory and seizure networks is under-appreciated. We survey the basic, translational, and clinical research accounting for long-axis differentiation and outline future research directions.

AIに質問

Bookmark

View Full Paper