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Related Concept Videos

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.
Plasticity00:58

Plasticity

Plasticity is the property where an object loses its elasticity and undergoes irreversible deformation, even after the deformation forces are eliminated. If a material deforms irreversibly without increasing stress or load, then this is called ideal plasticity. For example, when a force is applied to an aluminum rod, it changes its shape, but it does not return to its original shape once the force is removed. Plastic deformation or ductility is thus a permanent deformation or change in the...
Plastic Deformations01:19

Plastic Deformations

Plastic deformation represents a fundamental concept in materials science, which explains the irreversible change in the shape of a material when it experiences stress beyond its elastic capability. This phenomenon is important in structural engineering, especially in designing and analyzing cantilever beams—structures that are securely fixed at one end and bear loads at the opposite end. When these beams are subjected to loads within their elastic range, they will return to their original...
Plastic Deformations01:14

Plastic Deformations

It is essential to understand how structural members behave under plastic deformation when the bending stress exceeds the material's yield strength. This state of deformation permanently alters the shape of the member, in contrast to the linear elastic behavior observed before yielding. The strain at any point in the member is expressed in terms of maximum strain. Notably, the neutral axis, which coincides with the centroid during elastic bending, shifts away from the centroid under plastic...
Plastic Behavior01:21

Plastic Behavior

A material's elastic behavior is characterized by the disappearance of stress once the load is removed, allowing the material to return to its original state. However, when stress surpasses the yield point, yielding commences, marking the onset of plastic deformation or permanent set. This change from elastic to plastic behavior is influenced by the peak stress value and the duration before the load is removed. An intriguing observation occurs when a specimen is loaded, unloaded, and reloaded.
Bone Remodeling01:40

Bone Remodeling

Bone remodeling is a continuous and balanced process of bone resorption by osteoclasts and bone formation by osteoblasts. In adults, it helps maintain bone mass and calcium homeostasis. While mechanical stress can stimulate turnover as part of the normal maintenance and reparative process, several hormones also regulate bone remodeling.

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Related Experiment Video

Updated: May 23, 2026

Method for High Speed Stretch Injury of Human Induced Pluripotent Stem Cell-derived Neurons in a 96-well Format
08:35

Method for High Speed Stretch Injury of Human Induced Pluripotent Stem Cell-derived Neurons in a 96-well Format

Published on: April 20, 2018

Human structural plasticity at record speed.

Heidi Johansen-Berg1, Cassandra Sampaio Baptista, Adam G Thomas

  • 1Nuffield Department of Clinical Neurosciences, Oxford Centre for Functional MRI of the Brain, John Radcliffe Hospital, Headington, Oxford OX3 9DU, UK. heidi@fmrib.ox.ac.uk

Neuron
|March 27, 2012
PubMed
Summary
This summary is machine-generated.

Learning rapidly alters brain structure. A study shows that just two hours of spatial learning can change the brain in both humans and rats, demonstrating neuroplasticity.

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Area of Science:

  • Neuroscience
  • Cognitive Science
  • Neuroimaging

Background:

  • The brain's capacity for change, known as neuroplasticity, is fundamental to learning.
  • Understanding the timescale of these structural changes is crucial for cognitive research.

Purpose of the Study:

  • To investigate the speed at which learning induces structural changes in the brain.
  • To determine if short-term spatial learning can alter brain structure.

Main Methods:

  • Diffusion magnetic resonance imaging (dMRI) was employed in both human and rat subjects.
  • Subjects underwent a controlled spatial learning task lasting two hours.

Main Results:

  • Significant alterations in brain structure were observed after only two hours of spatial learning.
  • These structural changes were detectable using diffusion magnetic resonance imaging in both species.

Conclusions:

  • Even brief periods of spatial learning can induce measurable changes in brain structure.
  • This highlights the rapid neuroplasticity of the brain in response to environmental stimuli and learning experiences.