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Neuroplasticity

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.

Neuronal Communication

Neuronal Communication

Neurons, the fundamental units of the brain and nervous system, communicate through complex electrochemical signals that underpin all cognitive and bodily functions. This communication is primarily facilitated by a process involving the generation and propagation of an action potential along the axon of the neuron. When the internal electrical charge of a neuron surpasses a certain threshold, an action potential is triggered. This rapid change in voltage travels swiftly along the axon to the...

The Synapse

The Synapse

Neurons communicate with one another by passing on their electrical signals to other neurons. A synapse is the location where two neurons meet to exchange signals. At the synapse, the neuron that sends the signal is called the presynaptic cell, while the neuron that receives the message is called the postsynaptic cell. Note that most neurons can be both presynaptic and postsynaptic, as they both transmit and receive information.

Plasticity

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...

Overview of Synapses

Overview of Synapses

A synapse is a specialized structure where two neurons connect, allowing them to pass an electrical or chemical signal to another neuron. It is the point of communication between neurons. The term "synapse" is derived from the Greek word "synapsis," which means "conjunction." The entire process of neural communication revolves around the synapse. When activated, a neuron releases chemicals known as neurotransmitters into the synapse. These neurotransmitters cross the synapse and bind to...

Integration of Synaptic Events

Integration of Synaptic Events

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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Related Experiment Video

Updated: May 22, 2026

An Engulfment Assay: A Protocol to Assess Interactions Between CNS Phagocytes and Neurons

An Engulfment Assay: A Protocol to Assess Interactions Between CNS Phagocytes and Neurons

Published on: June 8, 2014

Neuroplasticity: an appreciation from synapse to system.

Bernadette T Gillick¹, Lance Zirpel

¹Department of Physical Medicine and Rehabilitation, Program in Physical Therapy, University of Minnesota Medical School, Minneapolis, MN, USA. gillick@umn.edu

Archives of Physical Medicine and Rehabilitation

|May 23, 2012

Summary

Understanding neuroplasticity mechanisms enhances neurorehabilitation. This review integrates functional knowledge with neuroplasticity research, guiding more effective therapies for better clinical outcomes.

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Last Updated: May 22, 2026

An Engulfment Assay: A Protocol to Assess Interactions Between CNS Phagocytes and Neurons

An Engulfment Assay: A Protocol to Assess Interactions Between CNS Phagocytes and Neurons

Published on: June 8, 2014

Perspectives on Neuroscience

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Published on: July 31, 2007

Whole-cell Patch-clamp Recordings in Brain Slices

Whole-cell Patch-clamp Recordings in Brain Slices

Published on: June 15, 2016

Area of Science:

Neuroscience
Rehabilitation Medicine

Background:

Neurorehabilitation relies on understanding neuroplasticity.
Current research explores the brain's adaptability.

Purpose of the Study:

Integrate functional neurorehabilitation knowledge with neuroplasticity theories and research.
Enhance understanding of mechanisms underlying nervous system plasticity.

Main Methods:

Literature review of animal and human research.
Examined interventions: constraint-induced movement therapy, transcranial magnetic stimulation, and transcranial direct current stimulation.
Focused on outcomes like cortical excitability and functional improvements.

Main Results:

Evidence shows cellular/molecular mechanisms of neuroplasticity correlate with behavioral changes.
Nervous system responses to altered inputs are increasingly understood.
Neural correlates of behavior provide a basis for improved interventions.

Conclusions:

Translational research aims to enhance clinical outcomes.
Understanding neuroplasticity mechanisms is crucial for treatments, diagnoses, and prognoses.
Enhanced knowledge of neuroplasticity can improve the efficacy of current and future therapies for better functional outcomes.