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Related Concept Videos

Neuroplasticity01:01

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 Potentiation01:35

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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.
Hebbian LTP
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Understanding Sleep01:11

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Sleep, an essential biological state, involves significant reductions in physical activity, sensory awareness, and interaction with the environment. This complex physiological process is primarily regulated by specific brain regions, notably the hypothalamus and pons, which govern the sleep-wake cycle or circadian rhythm.
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Long-term Depression01:03

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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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Measuring Neural Mechanisms Underlying Sleep-Dependent Memory Consolidation During Naps in Early Childhood
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Post-learning micro- and macro-structural neuroplasticity changes with time and sleep.

Whitney Stee1, Philippe Peigneux1

  • 1UR2NF-Neuropsychology and Functional Neuroimaging Research Unit Affiliated at CRCN - Centre for Research in Cognition and Neurosciences, Avenue F.D, Roosevelt 50, Bruxelles 1050, Belgium; UNI-ULB Neuroscience Institute, Université Libre de Bruxelles (ULB), Avenue F.D. Roosevelt 50, Bruxelles 1050, Belgium.

Biochemical Pharmacology
|December 18, 2020
PubMed
Summary
This summary is machine-generated.

Neuroplasticity allows the brain to change structure and function in response to new stimuli. This review highlights how post-learning sleep and time influence these brain changes, especially short-term structural modifications.

Keywords:
Diffusion weighted imaging (DWI)Learning and memory consolidationNeuroplasticitySleepStructural neuroimaging

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Area of Science:

  • Neuroscience
  • Cognitive Science
  • Neuroimaging

Background:

  • Neuroplasticity involves brain structure and function modifications in response to environmental stimuli.
  • Learning induces both online and offline brain changes, with structural modifications often demonstrated long-term.
  • Short-term structural brain changes were historically elusive but are now trackable with advanced MR methods.

Purpose of the Study:

  • To review literature linking training/learning to structural brain changes.
  • To emphasize the role of post-training sleep and time in modulating these modifications.
  • To explore open questions regarding sleep's role in macrostructural changes and microstructural processes.

Main Methods:

  • Literature review of studies on neuroplasticity, learning, and structural brain changes.
  • Focus on advanced Magnetic Resonance (MR) methods for tracking short-timescale cerebral changes.
  • Analysis of findings related to post-learning sleep and memory consolidation.

Main Results:

  • Learning induces structural brain changes, detectable over short timescales using advanced MR.
  • Post-learning sleep plays a role in memory consolidation and promoting neural network changes.
  • While sleep's role in long-term structural changes is known, rapid post-training sleep effects on human brain structure are less studied.

Conclusions:

  • Advanced MR techniques enable tracking of rapid, fine-grained structural brain changes post-learning.
  • Post-learning sleep is crucial for memory consolidation and influences structural modifications.
  • Further research is needed on sleep's role in macrostructural changes and its link to microstructural processes.