Nmda Stimulus
Nmda Stimulus - Related Videos
07:11
Examination of Anatomical Features of Retinal Ganglion Cells Under N-methyl-D-aspartic Acid (NMDA)-induced Excitotoxicity
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2025
Here, we describe the use of a genetically directed alkaline phosphatase (AP) labeling method to investigate the anatomical features and phenotypes of mouse retinas under NMDA-induced excitotoxicity. In conjunction with several retinal ganglion cell (RGC) subtype-specific reporter lines, we uncover novel phenotypes in dying RGCs throughout the degenerative process.
06:42
Application of a NMDA Receptor Conductance in Rat Midbrain Dopaminergic Neurons Using the Dynamic Clamp Technique
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Cited by 5 •
2010
In this video, we demonstrate how to apply a conductance into a dopaminergic neuron recorded in the whole cell configuration in rat brain slices. This technique is called the dynamic clamp.
03:04
Inducing Axonal Varicosities with a Micromechanical Stimulus on Neurons
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2025
This video demonstrates the induction of axonal varicosities by applying micromechanical stimulus on neurons. The system comprises a micropipette attached to a syringe containing buffer via tubing. Using a micromanipulator, the micropipette is positioned above the neurons. Fluid pressure is then applied to induce varicosities in axons.
09:52
How to Find Effects of Stimulus Processing on Event Related Brain Potentials of Close Others when Hyperscanning Partners
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Cited by 2 •
2018
This protocol describes key steps involved in assessing the sensitivity of the brain of one person to the stimulus processing of a close other by selecting pairs of partners, recording their electroencephalogram (EEG) simultaneously and computing their event-related brain potentials (ERPs).
01:30
Cognitive Enhancers: Cholinesterase Inhibitors and NMDA Receptor Antagonists
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2024
Cognitive enhancers, also known as "smart drugs," are substances used to enhance memory, mental alertness, and concentration. These can be natural or synthetic and improve cognition in conditions like Alzheimer's disease (AD) and other neurodegenerative diseases. Some common examples include caffeine, amphetamines, methylphenidate, modafinil, arecoline, donepezil, vortioxetine, and piracetam. These enhancers work on the principle of synaptic plasticity and altered circuit function. They...
FAQs
Activation depends on two converging conditions: ligand binding and enough membrane depolarization to remove the magnesium block. This requirement links receptor opening to simultaneous chemical and electrical activity in the neuron. Consequently, an NMDA stimulus helps researchers examine how coordinated synaptic activity produces calcium entry and longer-lasting changes in neuronal signaling.
Calcium entry provides a central connection between receptor activation and calcium-dependent signaling inside the neuron. In experimental studies, this connection helps investigators relate NMDA receptor activity to long-term potentiation, changes in neuronal excitability, and synaptic plasticity. The same pathway also provides a framework for examining how excessive or altered activity may contribute to synaptic injury.
The biological outcome depends strongly on how receptor activity is regulated. Controlled activation can be used to study excitability, plasticity, and signaling, whereas altered receptor activity is examined in relation to excitotoxicity and neuronal injury. Comparing these contexts allows neuroscience studies to distinguish physiological roles in communication from potentially damaging consequences of dysregulated signaling.
An NMDA stimulus focuses the experiment on the contribution of NMDA receptors rather than treating excitatory signaling as a single undifferentiated process. This receptor-specific approach helps investigators connect ligand-dependent activation and depolarization-dependent opening with calcium entry, synaptic plasticity, neuronal excitability, and excitotoxicity. It therefore separates NMDA-related effects from broader excitatory responses.
Controlled stimulation can support investigations of several linked outcomes, including long-term potentiation, neuronal excitability, calcium-dependent signaling, and excitotoxicity. The selected outcome determines how the experiment is interpreted: researchers may focus on adaptive synaptic changes, electrical responsiveness, intracellular calcium-related mechanisms, or signs of synaptic injury. This makes the approach useful across multiple neuroscience questions.
Researchers use NMDA stimulation to examine how receptor-dependent calcium signaling relates to long-term potentiation, a form of synaptic plasticity associated with lasting changes in neural communication. Studying this connection provides experimental context for learning and memory research by linking receptor activation with the cellular processes that modify synaptic function.
NMDA receptor activity has relevance beyond normal synaptic communication because altered activity may contribute to excitotoxicity and synaptic injury. Experimental stimulation helps researchers investigate these damaging mechanisms while also examining receptor-related signaling during nervous-system development. Together, these applications connect cellular receptor function with disease-related changes and developmental neuroscience.