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Neuroplasticity

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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.

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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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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: Dec 30, 2025

Presynaptically Silent Synapses Studied with Light Microscopy

Presynaptically Silent Synapses Studied with Light Microscopy

Published on: January 4, 2010

SYNPLA, a method to identify synapses displaying plasticity after learning.

Kim Dore¹, Yvonne Pao¹, Jose Soria Lopez¹

¹Center for Neural Circuits and Behavior, Department of Neuroscience and Section for Neurobiology, Division of Biology, University of California San Diego, La Jolla, CA 92093.

Proceedings of the National Academy of Sciences of the United States of America

|January 25, 2020

Summary

This summary is machine-generated.

Researchers developed a new method to track brain changes during learning. SYNPLA (synaptic proximity ligation assay) detects synaptic plasticity in specific neural circuits, linking synaptic changes to memory formation.

Keywords:

GluA1 defense conditioning fear conditioning proximity ligation assay synaptic potentiation

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DetectSyn: A Rapid, Unbiased Fluorescent Method to Detect Changes in Synapse Density

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Area of Science:

Neuroscience
Molecular Biology
Systems Neuroscience

Background:

Synaptic plasticity is crucial for learning and memory.
Connecting specific synaptic changes to behaviors remains difficult.

Purpose of the Study:

Introduce a novel method to detect learning-induced synaptic plasticity.
Enable the study of circuit-specific changes in the brain.

Main Methods:

Developed SYNPLA (synaptic proximity ligation assay).
SYNPLA is a synapse-specific, high-throughput method.
The assay can potentially be applied brain-wide.

Main Results:

SYNPLA detects circuit-specific synaptic plasticity.
The method links synaptic changes to learning processes.

Conclusions:

SYNPLA offers a powerful tool for studying the neural basis of learning.
Facilitates understanding of how synaptic changes relate to memory.