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Role of Hippocampus in Memory

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The hippocampus, a critical brain structure, plays an essential role in memory processing, particularly in the formation and retrieval of memory. This small, seahorse-shaped region is located within the medial temporal lobe, with one hippocampus in each brain hemisphere. Experimental studies involving lesions in the hippocampi of rats have demonstrated significant impairments in tasks such as object recognition and maze navigation, indicating the hippocampus involvement in both recognition and...

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Related Experiment Video

Updated: Jun 16, 2026

Preparation of Acute Slices from Dorsal Hippocampus for Whole-Cell Recording and Neuronal Reconstruction in the Dentate Gyrus of Adult Mice

Preparation of Acute Slices from Dorsal Hippocampus for Whole-Cell Recording and Neuronal Reconstruction in the Dentate Gyrus of Adult Mice

Published on: April 3, 2021

Are the dorsal and ventral hippocampus functionally distinct structures?

Michael S Fanselow¹, Hong-Wei Dong

¹Department of Psychology and the Brain Research Institute, University of California, Los Angeles, Los Angeles, CA 90095-1563, USA. fanselow@ucla.edu <fanselow@ucla.edu>

|February 16, 2010

Summary

This summary is machine-generated.

The hippocampus has distinct dorsal and ventral regions. The dorsal hippocampus is linked to cognitive functions, while the ventral hippocampus regulates emotion and stress responses.

More Related Videos

Horizontal Hippocampal Slices of the Mouse Brain

Horizontal Hippocampal Slices of the Mouse Brain

Published on: September 22, 2020

Related Experiment Videos

Last Updated: Jun 16, 2026

Preparation of Acute Slices from Dorsal Hippocampus for Whole-Cell Recording and Neuronal Reconstruction in the Dentate Gyrus of Adult Mice

Preparation of Acute Slices from Dorsal Hippocampus for Whole-Cell Recording and Neuronal Reconstruction in the Dentate Gyrus of Adult Mice

Published on: April 3, 2021

Horizontal Hippocampal Slices of the Mouse Brain

Horizontal Hippocampal Slices of the Mouse Brain

Published on: September 22, 2020

Area of Science:

Neuroscience
Cognitive Neuroscience
Neurobiology

Background:

The hippocampus is traditionally viewed as either a memory center or an emotion regulator.
Previous research has yielded conflicting perspectives on hippocampal function.

Purpose of the Study:

To investigate the functional segmentation of the hippocampus.
To reconcile differing views on the hippocampus's role in cognition and emotion.

Main Methods:

Review of behavioral studies.
Analysis of anatomical data.
Examination of gene expression patterns.

Main Results:

Evidence supports functional segmentation into dorsal, intermediate, and ventral hippocampal compartments.
The dorsal hippocampus (posterior in primates) is associated with cognitive functions.
The ventral hippocampus (anterior in primates) is linked to emotion, stress, and affect.
Gene expression patterns correlate with specific functional regions (dorsal with cortical information processing, ventral with amygdala/hypothalamic emotion/stress pathways).

Conclusions:

The hippocampus is functionally segmented, with distinct roles for its dorsal and ventral regions.
This segmentation helps explain its involvement in both cognitive and emotional processes.
Gene expression provides a molecular basis for this functional specialization.