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Related Concept Videos

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...
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.
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...
Long-term Depression01:05

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.
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.

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Related Experiment Video

Updated: Jun 10, 2026

3D Modeling of Dendritic Spines with Synaptic Plasticity
07:13

3D Modeling of Dendritic Spines with Synaptic Plasticity

Published on: May 18, 2020

Synaptic stability and plasticity in a floating world.

Kimberly Gerrow1, Antoine Triller

  • 1Biologie Cellulaire de la Synapse, Institute de Biologie de l'Ecole Normale Supérieure, 46 rue d'Ulm, 75005 Paris, France.

Current Opinion in Neurobiology
|July 27, 2010
PubMed
Summary
This summary is machine-generated.

Single-particle tracking visualizes how neuronal activity controls neurotransmitter receptor movement at synapses. This regulation impacts synaptic strength by tuning receptor numbers through dynamic scaffold assembly.

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Last Updated: Jun 10, 2026

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Area of Science:

  • Membrane biophysics
  • Neuroscience
  • Cell biology

Background:

  • Membrane diffusion of lipids and proteins is crucial for cellular functions.
  • Synapse structure and function depend on controlling lateral diffusion.
  • Neurotransmitter receptor dynamics at synapses are key to synaptic plasticity.

Purpose of the Study:

  • To review recent findings on the regulation of lateral diffusion of membrane components.
  • To elucidate mechanisms controlling neurotransmitter receptor stabilization at synapses.
  • To understand how receptor dynamics influence synaptic strength.

Main Methods:

  • Single-particle tracking (SPT) to visualize molecular movements in real-time.
  • Analysis of complex diffusive behaviors of membrane proteins.
  • Investigating the role of scaffolding molecules in receptor stabilization.

Main Results:

  • SPT reveals that neuronal activity regulates lateral diffusion of membrane proteins.
  • Neurotransmitter receptors are transiently stabilized at synapses by scaffolding molecules.
  • The dynamic equilibrium of receptor-scaffold assembly is a key regulatory mechanism.

Conclusions:

  • Control of lateral diffusion is a fundamental mechanism for regulating synapse function.
  • Scaffolding molecules play a critical role in tuning neurotransmitter receptor numbers at synapses.
  • Understanding these dynamics provides insight into synaptic strength regulation.