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Role of Hippocampus in Memory

Role of Hippocampus in Memory

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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Association Areas of the Cortex

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Association areas are regions of the cerebral cortex that do not have a specific sensory or motor function. Instead, they integrate and interpret information from various sources to enable higher cognitive processes such as memory, learning, and decision-making. Some key association areas include the following:
Prefrontal Association Area: This area is located in the frontal lobe and is involved in planning, decision-making, and moderating social behavior. It connects with primary motor areas,...

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Related Experiment Video

Updated: May 22, 2026

A Video Demonstration of Preserved Piloting by Scent Tracking but Impaired Dead Reckoning After Fimbria-Fornix Lesions in the Rat

A Video Demonstration of Preserved Piloting by Scent Tracking but Impaired Dead Reckoning After Fimbria-Fornix Lesions in the Rat

Published on: April 24, 2009

The hippocampus and visual perception.

Andy C H Lee¹, Lok-Kin Yeung, Morgan D Barense

¹Department of Psychology (Scarborough), University of Toronto, Toronto ON, Canada.

Frontiers in Human Neuroscience

|April 25, 2012

Summary

The hippocampus may play a role in spatial perception, not just memory. Recent studies suggest its involvement in processing complex visual scenes, challenging traditional views of segregated brain functions.

Keywords:

amnesia functional neuroimaging hippocampus medial temporal lobe memory neuropsychology perception perirhinal cortex

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Related Experiment Videos

Last Updated: May 22, 2026

A Video Demonstration of Preserved Piloting by Scent Tracking but Impaired Dead Reckoning After Fimbria-Fornix Lesions in the Rat

A Video Demonstration of Preserved Piloting by Scent Tracking but Impaired Dead Reckoning After Fimbria-Fornix Lesions in the Rat

Published on: April 24, 2009

Longitudinal Two-Photon Imaging of Dorsal Hippocampal CA1 in Live Mice

Longitudinal Two-Photon Imaging of Dorsal Hippocampal CA1 in Live Mice

Published on: June 19, 2019

Horizontal Hippocampal Slices of the Mouse Brain

Horizontal Hippocampal Slices of the Mouse Brain

Published on: September 22, 2020

Area of Science:

Neuroscience
Cognitive Psychology
Neuroimaging

Background:

Traditional theories propose functional and neuroanatomical segregation between memory and perception.
Recent studies challenge this by implicating the hippocampus in visual perception tasks.

Purpose of the Study:

To review evidence suggesting the hippocampus is involved in spatial perception.
To propose a revised understanding of hippocampal function beyond memory.

Main Methods:

Review of neuropsychological studies.
Analysis of functional neuroimaging data.
Examination of patient findings related to medial temporal lobe (MTL) dysfunction.

Main Results:

The hippocampus is involved in the visual discrimination of complex spatial scenes.
Findings are inconsistent with explanations based solely on long-term or working memory.
Patient data suggests the role is specific to the hippocampus and not broader MTL dysfunction.

Conclusions:

The hippocampus plays a critical role in higher-order spatial perception.
It processes complex conjunctions of spatial features.
Focus should shift to the representations the hippocampus supports, rather than solely the cognitive processes it mediates.