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Related Concept Videos

Role of Hippocampus in Memory01:19

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...
Functional Brain Systems: Limbic System01:15

Functional Brain Systems: Limbic System

The limbic system, often called the "emotional brain," is a complex set of structures located deep within the brain. The intricate network of the limbic system supports a wide range of psychological functions, from emotional regulation to memory formation and sensory processing. This functional brain region encompasses specific parts of the diencephalon and the cerebrum, integrating the higher mental functions of the cerebral cortex with the primitive emotional responses of the deep brain...

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Annals of the New York Academy of Sciences·2003
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Related Experiment Video

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Horizontal Hippocampal Slices of the Mouse Brain
08:59

Horizontal Hippocampal Slices of the Mouse Brain

Published on: September 22, 2020

Unsolved mysteries: the hippocampus.

Robert L Isaacson1

  • 1Binghamton University, USA.

Behavioral and Cognitive Neuroscience Reviews
|August 25, 2007
PubMed
Summary

Scientific interest in the hippocampus surged following studies of hippocampectomized monkeys and patient H.M. This review highlights overlooked experimental data crucial for developing comprehensive theories of hippocampal function.

Area of Science:

  • Neuroscience
  • Cognitive Psychology
  • Neurobiology

Background:

  • The 1950s marked a significant increase in hippocampus research, spurred by Klüver and Bucy's monkey studies and patient H.M.'s memory deficits after temporal lobe surgery.
  • Numerous theories on hippocampal function have emerged, yet none fully encompass all clinical and laboratory findings.
  • Existing theories often neglect crucial experimental results and postsurgical behavioral observations.

Observation:

  • Key experimental findings and reliable postsurgical behavioral observations related to the hippocampus have been historically overlooked.
  • Anomalies in hippocampal function are noted under specific conditions that require careful consideration.
  • The complexity of hippocampal roles necessitates a re-evaluation of existing research paradigms.

Findings:

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Combined Mechanical and Enzymatic Dissociation of Mouse Brain Hippocampal Tissue
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Longitudinal Two-Photon Imaging of Dorsal Hippocampal CA1 in Live Mice
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Longitudinal Two-Photon Imaging of Dorsal Hippocampal CA1 in Live Mice

Published on: June 19, 2019

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Last Updated: Jul 12, 2026

Horizontal Hippocampal Slices of the Mouse Brain
08:59

Horizontal Hippocampal Slices of the Mouse Brain

Published on: September 22, 2020

Combined Mechanical and Enzymatic Dissociation of Mouse Brain Hippocampal Tissue
07:14

Combined Mechanical and Enzymatic Dissociation of Mouse Brain Hippocampal Tissue

Published on: October 21, 2021

Longitudinal Two-Photon Imaging of Dorsal Hippocampal CA1 in Live Mice
09:34

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

Published on: June 19, 2019

  • This article presents experimental results that challenge current understandings of the hippocampus.
  • A critical review of forgotten data is essential for advancing hippocampal research.
  • Understanding the hippocampus requires integrating diverse experimental outcomes.

Implications:

  • Developing adequate theories of hippocampal function necessitates accounting for all known behavioral observations.
  • Future theories must consider the specific conditions under which hippocampal anomalies manifest.
  • A comprehensive understanding requires novel approaches focusing on the hippocampus's interactions within the central nervous system.