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Related Concept Videos

Long-term Potentiation01:25

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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Role of Neurotransmitters in Memory01:23

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Neurotransmitters are integral to the brain's communication system, enabling neurons to transmit signals across synapses. This chemical exchange underpins various cognitive functions, including memory processes. The role of neurotransmitters in memory is multifaceted, influencing the encoding, consolidation, and retrieval of memories through their action on different neural circuits.
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Neuroplasticity01:01

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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 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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Integration of Synaptic Events01:28

Integration of Synaptic Events

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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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Synaptic Signaling01:09

Synaptic Signaling

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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.
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Related Experiment Video

Updated: Sep 20, 2025

Investigation of Synaptic Tagging/Capture and Cross-capture using Acute Hippocampal Slices from Rodents
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Synaptic plasticity during systems memory consolidation.

Akihiro Goto1

  • 1Department of Pharmacology, Kyoto University Graduate School of Medicine, Kyoto 606-8501, Japan.

Neuroscience Research
|June 6, 2022
PubMed
Summary
This summary is machine-generated.

Synaptic plasticity in the hippocampus and cortex is crucial for systems memory consolidation. This review explores how synaptic plasticity drives long-lasting memory storage and retrieval.

Keywords:
Anterior cingulate cortexCALIHippocampusLong-term potentiationOptogeneticsStructural plasticitySynaptic plasticitySystems memory consolidation

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Area of Science:

  • Neuroscience
  • Cognitive Science
  • Molecular Biology

Background:

  • Memory formation involves initial encoding in the hippocampus.
  • Long-term memory storage requires systems memory consolidation, transferring memories to cortical regions.
  • The cellular mechanisms of memory consolidation, particularly synaptic plasticity, remain a key research area.

Purpose of the Study:

  • To review the role of synaptic plasticity in systems memory consolidation.
  • To explore the link between synaptic plasticity and memory-associated behaviors.
  • To summarize research on synaptic plasticity in the hippocampus and cortex during memory consolidation.

Main Methods:

  • Literature review of studies investigating synaptic plasticity and memory consolidation.
  • Analysis of research linking cellular mechanisms to behavioral outcomes.
  • Focus on findings from hippocampal and cortical studies.

Main Results:

  • Synaptic plasticity is identified as a primary cellular mechanism for learning and memory.
  • Evidence supports a causal relationship between synaptic plasticity and memory consolidation.
  • Specific roles of synaptic plasticity in the hippocampus and cortex are highlighted.

Conclusions:

  • Synaptic plasticity is fundamental to the process of systems memory consolidation.
  • Understanding synaptic plasticity is key to understanding long-lasting memory storage.
  • Further research into hippocampal and cortical plasticity will elucidate memory mechanisms.