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Related Concept Videos

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.
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.
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...

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Related Experiment Video

Updated: May 15, 2026

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

3D Modeling of Dendritic Spines with Synaptic Plasticity

Published on: May 18, 2020

Soft-bound synaptic plasticity increases storage capacity.

Mark C W van Rossum1, Maria Shippi, Adam B Barrett

  • 1Institute for Adaptive and Neural Computation, School of Informatics, University of Edinburgh, Edinburgh, United Kingdom. mvanross@inf.ed.ac.uk

Plos Computational Biology
|January 4, 2013
PubMed
Summary
This summary is machine-generated.

Soft-bound plasticity enhances synaptic strength regulation, improving information storage and likely maximizing synapse capacity compared to hard-bound plasticity.

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Improved Preparation and Preservation of Hippocampal Mouse Slices for a Very Stable and Reproducible Recording of Long-term Potentiation
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Improved Preparation and Preservation of Hippocampal Mouse Slices for a Very Stable and Reproducible Recording of Long-term Potentiation

Published on: June 26, 2013

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

Related Experiment Videos

Last Updated: May 15, 2026

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

3D Modeling of Dendritic Spines with Synaptic Plasticity

Published on: May 18, 2020

Improved Preparation and Preservation of Hippocampal Mouse Slices for a Very Stable and Reproducible Recording of Long-term Potentiation
09:39

Improved Preparation and Preservation of Hippocampal Mouse Slices for a Very Stable and Reproducible Recording of Long-term Potentiation

Published on: June 26, 2013

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

Area of Science:

  • Neuroscience
  • Computational Neuroscience
  • Information Theory

Background:

  • Synaptic plasticity models are crucial for understanding nervous system adaptation, learning, and memory.
  • Synaptic plasticity is influenced by activity patterns and connection strength, with weaker synapses strengthening more easily (soft-bound plasticity).
  • The impact of soft-bound plasticity on information storage remains largely unexplored.

Purpose of the Study:

  • To investigate the effect of soft-bound plasticity on information storage within an online learning framework.
  • To compare the performance of soft-bound plasticity against hard-bound plasticity using an information-theoretic approach.

Main Methods:

  • Development of an information-theoretic framework to analyze memory storage.
  • Modeling synaptic plasticity with a focus on soft-bound constraints.
  • Comparison of online learning performance metrics between soft-bound and hard-bound plasticity models.

Main Results:

  • Soft-bound plasticity demonstrated an approximate 18% improvement in various performance criteria over hard-bound plasticity.
  • The study suggests that soft-bound plasticity may optimize synaptic storage capacity.
  • Synaptic strength distributions and plasticity dynamics are significantly affected by soft-bound constraints.

Conclusions:

  • Soft-bound plasticity offers significant advantages for information storage in neural systems.
  • This plasticity mechanism likely maximizes the storage capacity of synapses.
  • The findings provide a new perspective on the functional implications of synaptic plasticity in learning and memory.