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Related Concept Videos

Neuroplasticity01:01

Neuroplasticity

Neuroplasticity reflects the brain's remarkable capacity to adapt and evolve, responding dynamically to learning, experiences, or injury by reorganizing its neural circuitry. This reorganization involves creating new neural connections and refining old ones through a series of biological processes that contribute to the brain's lifelong development and adaptability.
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...
Plasticity00:58

Plasticity

Plasticity is the property where an object loses its elasticity and undergoes irreversible deformation, even after the deformation forces are eliminated. If a material deforms irreversibly without increasing stress or load, then this is called ideal plasticity. For example, when a force is applied to an aluminum rod, it changes its shape, but it does not return to its original shape once the force is removed. Plastic deformation or ductility is thus a permanent deformation or change in the...
Long-term Potentiation01:25

Long-term Potentiation

Long-term potentiation, or LTP, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTP is the process of synaptic strengthening that occurs over time between pre and postsynaptic neuronal connections. The synaptic strengthening of LTP works in opposition to the synaptic weakening of long-term depression (LTD) and together are the main mechanisms that underlie learning and memory.
Hebbian LTP
LTP can occur when presynaptic neurons...
Long-term Potentiation01:35

Long-term Potentiation

Long-term potentiation, or LTP, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTP is the process of synaptic strengthening that occurs over time between pre- and postsynaptic neuronal connections. The synaptic strengthening of LTP works in opposition to the synaptic weakening of long-term depression (LTD) and together are the main mechanisms that underlie learning and memory.
Long-term Depression01:03

Long-term Depression

Long-term depression, or LTD, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTD is the process of synaptic weakening that occurs over time between pre and postsynaptic neuronal connections. The synaptic weakening of LTD works in opposition to synaptic strengthening by long-term potentiation (LTP) and together are the main mechanisms that underlie learning and memory.
Calcium Ion Concentration Mechanism
If over time, all...

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Related Experiment Video

Updated: Jun 21, 2026

Investigating Long-term Synaptic Plasticity in Interlamellar Hippocampus CA1 by Electrophysiological Field Recording
14:27

Investigating Long-term Synaptic Plasticity in Interlamellar Hippocampus CA1 by Electrophysiological Field Recording

Published on: August 11, 2019

Structural plasticity and hippocampal function.

Benedetta Leuner1, Elizabeth Gould

  • 1Department of Psychology, Neuroscience Institute, Princeton University, Princeton, New Jersey 08544, USA.

Annual Review of Psychology
|July 7, 2009
PubMed
Summary
This summary is machine-generated.

The adult hippocampus remains structurally plastic throughout life, undergoing significant reorganization. This plasticity influences learning, memory, and stress regulation, with ongoing research exploring its full implications.

More Related Videos

Investigation of Synaptic Tagging/Capture and Cross-capture using Acute Hippocampal Slices from Rodents
11:29

Investigation of Synaptic Tagging/Capture and Cross-capture using Acute Hippocampal Slices from Rodents

Published on: September 4, 2015

Recording Synaptic Plasticity in Acute Hippocampal Slices Maintained in a Small-volume Recycling-, Perfusion-, and Submersion-type Chamber System
09:51

Recording Synaptic Plasticity in Acute Hippocampal Slices Maintained in a Small-volume Recycling-, Perfusion-, and Submersion-type Chamber System

Published on: January 1, 2018

Related Experiment Videos

Last Updated: Jun 21, 2026

Investigating Long-term Synaptic Plasticity in Interlamellar Hippocampus CA1 by Electrophysiological Field Recording
14:27

Investigating Long-term Synaptic Plasticity in Interlamellar Hippocampus CA1 by Electrophysiological Field Recording

Published on: August 11, 2019

Investigation of Synaptic Tagging/Capture and Cross-capture using Acute Hippocampal Slices from Rodents
11:29

Investigation of Synaptic Tagging/Capture and Cross-capture using Acute Hippocampal Slices from Rodents

Published on: September 4, 2015

Recording Synaptic Plasticity in Acute Hippocampal Slices Maintained in a Small-volume Recycling-, Perfusion-, and Submersion-type Chamber System
09:51

Recording Synaptic Plasticity in Acute Hippocampal Slices Maintained in a Small-volume Recycling-, Perfusion-, and Submersion-type Chamber System

Published on: January 1, 2018

Area of Science:

  • Neuroscience
  • Neurobiology
  • Brain Plasticity

Background:

  • The hippocampus, a key brain region, exhibits remarkable structural reorganization.
  • Structural changes like dendritic complexity, synapse modification, and neurogenesis were once thought limited to development.
  • It is now widely accepted that the hippocampus maintains structural plasticity throughout adulthood.

Purpose of the Study:

  • To review structural plasticity in the hippocampus across the lifespan.
  • To discuss experimental methods for investigating hippocampal plasticity.
  • To explore the influence of experiential factors and the role of plasticity in hippocampal functions.

Main Methods:

  • Review of existing literature on hippocampal structural plasticity.
  • Discussion of experimental techniques used to study brain structure and function.
  • Analysis of factors modulating plasticity and its functional relevance.

Main Results:

  • The hippocampus demonstrates continuous structural plasticity throughout life.
  • Experiential factors significantly modulate this plasticity.
  • Hippocampal plasticity is implicated in learning, memory, anxiety, and stress regulation.

Conclusions:

  • The hippocampus is structurally plastic throughout life, not just during development.
  • Understanding hippocampal plasticity is crucial for comprehending learning, memory, and emotional regulation.
  • Further research is needed to address outstanding questions regarding hippocampal plasticity.