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Related Concept Videos

Integration of Synaptic Events01:28

Integration of Synaptic Events

Synaptic integration mainly includes the summation of graded potentials. Graded potentials, regardless of their type, cause subtle alterations in membrane voltage, resulting in either depolarization or hyperpolarization. These incremental changes, when combined or summed, can propel the neuron toward its threshold. Consider, for example, a membrane experiencing a +15 mV shift, causing it to depolarize from -70 mV to -55 mV. In this scenario, graded potentials govern the membrane's ability to...
Synaptic Signaling01:09

Synaptic Signaling

Neurons communicate at synapses, or junctions, to excite or inhibit the activity of other neurons or target cells, such as muscles. Synapses may be chemical or electrical.
Most synapses are chemical, meaning an electrical impulse or action potential spurs the release of chemical messengers called neurotransmitters. The neuron sending the signal is called the presynaptic neuron, and the neuron receiving the signal is the postsynaptic neuron.
The presynaptic neuron fires an action potential that...
Synaptic Signaling01:12

Synaptic Signaling

Neurons communicate at synapses, or junctions, to excite or inhibit the activity of other neurons or target cells, such as muscles. Synapses may be chemical or electrical.
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 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: May 21, 2026

Evaluation of Synaptic Multiplicity Using Whole-cell Patch-clamp Electrophysiology
10:52

Evaluation of Synaptic Multiplicity Using Whole-cell Patch-clamp Electrophysiology

Published on: April 23, 2019

Synaptic clustering during development and learning: the why, when, and how.

Johan Winnubst1, Christian Lohmann

  • 1Department of Synapse and Network Development, Netherlands Institute for Neuroscience Amsterdam, Netherlands.

Frontiers in Molecular Neuroscience
|June 6, 2012
PubMed
Summary
This summary is machine-generated.

Neurons cluster synapses on dendrites for specific connections, a process observed during development and learning. This synaptic clustering relies on activity-dependent plasticity mechanisms.

Keywords:
activity-dependentdendritesdendritic integrationspontaneous activitysynapse developmentsynaptic plasticity

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Last Updated: May 21, 2026

Evaluation of Synaptic Multiplicity Using Whole-cell Patch-clamp Electrophysiology
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Evaluation of Synaptic Multiplicity Using Whole-cell Patch-clamp Electrophysiology

Published on: April 23, 2019

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An Optical Assay for Synaptic Vesicle Recycling in Cultured Neurons Overexpressing Presynaptic Proteins

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10:17

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Area of Science:

  • Neuroscience
  • Cell Biology
  • Computational Neuroscience

Background:

  • Neurons require specific connections and input integration for functional networks.
  • Subcellular organization, like synaptic clustering, has been hypothesized for efficient information processing.
  • Previous models predicted synapse clustering on dendrites for similar information streams.

Purpose of the Study:

  • To discuss recent findings on synaptic clustering in neuronal circuits.
  • To explore the role of synaptic activity and plasticity in this organization.
  • To provide an overview of candidate plasticity mechanisms involved in synaptic clustering.

Main Methods:

  • Review of recent imaging studies demonstrating synaptic clustering.
  • Analysis of the dependence of synaptic clustering on synaptic activity.
  • Discussion of potential local plasticity mechanisms.

Main Results:

  • Synaptic clustering has been directly observed in neuronal circuits during development and learning.
  • This organization is demonstrably dependent on synaptic activity.
  • Local plasticity mechanisms are strongly implicated in mediating synaptic clustering.

Conclusions:

  • Synaptic clustering represents a key subcellular organization for neuronal function.
  • Activity-dependent local plasticity mechanisms are crucial for establishing and maintaining synaptic clusters.
  • These findings offer new insights into how neurons process information and adapt.