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Related Concept Videos

Long-term Potentiation01:35

Long-term Potentiation

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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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Long-term Potentiation01:25

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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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Long-term Depression01:03

Long-term Depression

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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.
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Long-term Depression01:05

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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.
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Higher Mental Functions of Brain: Learning and Memory01:26

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Memory is one of the most vital higher mental functions of the brain. Memory is closely related to learning because it enables us to retain information and experiences from our past to use them in our present life. It also helps us to remember facts, events, and skills, such as riding a bike or swimming. There are two types of memory — declarative memory, which involves memorizing facts or events, and procedural memory, which enables us to remember how to do something like writing or...
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Ligand-Gated Ion Channel Receptor: Gating Mechanism01:30

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Ligand-gated ion channels are transmembrane proteins that play a vital role in intercellular communication and functions of the nervous system. They allow the influx of ions across the membrane once the neurotransmitter binds, allowing the subsequent transmission of electrical excitation across the neurons. Other ligand-gated ion channels, like the γ-aminobutyric acid (GABA) receptor, permit anions like chloride into the cells on the binding of the GABA molecule. Their entry into the cell...
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Related Experiment Video

Updated: Dec 3, 2025

Aversive Associative Learning and Memory Formation by Pairing Two Chemicals in Caenorhabditis elegans
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Neural inhibition for continual learning and memory.

Helen C Barron1

  • 1Medical Research Council Brain Network Dynamics Unit, Nuffield Department of Clinical Neurosciences, University of Oxford, Mansfield Road, Oxford, OX1 3TH, UK; Wellcome Centre for Integrative Neuroimaging, University of Oxford, FMRIB, John Radcliffe Hospital, Oxford, OX3 9DU, UK.

Current Opinion in Neurobiology
|October 31, 2020
PubMed
Summary
This summary is machine-generated.

Neural inhibition is key for continual learning, protecting old memories while allowing new information acquisition. This mechanism is vital for cognitive functions and adaptive behaviors in humans and mammals.

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Area of Science:

  • Neuroscience
  • Cognitive Science
  • Neurobiology

Background:

  • Mammals, including humans, exhibit remarkable learning capabilities in dynamic environments.
  • The biological underpinnings of continuous learning, especially memory preservation during new skill acquisition, remain incompletely understood.

Purpose of the Study:

  • To investigate the role of neural inhibition in enabling continual learning.
  • To explore how neural inhibition regulates memory stability and cortical plasticity.

Main Methods:

  • Utilized non-invasive methods in human studies to indirectly measure neural inhibition.
  • Corroborated findings with comparable animal studies.

Main Results:

  • Evidence suggests neural inhibition regulates the stability of neural networks.
  • Inhibition acts as a gate for cortical plasticity and memory retrieval.
  • Neural inhibition protects existing memories from interference, facilitating new learning.

Conclusions:

  • Neural inhibition is a critical mechanism for continual learning.
  • This process is essential for protecting memories and enabling adaptive behavior.
  • Neural inhibition likely plays a fundamental role in higher-order cognitive computations.