Neuron Function
Neuron Function - Related Videos
10:26
Rewiring Neuronal Circuits: A New Method for Fast Neurite Extension and Functional Neuronal Connection
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Cited by 8 •
2017
This procedure describes how to rapidly initiate, extend and connect neurites organized in microfluidic chambers using poly-D-lysine-coated beads fixed to micropipettes that guide neurite elongation.
07:03
Initiating Rapid Neurite Extension and Formation Functional Neuronal Connections
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2025
This video demonstrates a technique for the rapid initiation and extension of a neuron and creation of new connections with a target neuron using a microfluidic device and micromanipulation. This could be used for therapies that aim to reconnect neuronal circuits after trauma or in neurodegenerative diseases.
08:24
In utero Electroporation followed by Primary Neuronal Culture for Studying Gene Function in Subset of Cortical Neurons
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Cited by 18 •
2010
In utero electroporation is a valuable method for transfecting neuronal progenitor cells in vivo. Depending upon the placement of the electrodes and the developmental timepoint of electroporation, certain subsets of cortical cells can be targeted. Targeted cells can then be analyzed in vivo or in vitro for effects of genetic alteration.
09:43
Functional and Morphological Assessment of Diaphragm Innervation by Phrenic Motor Neurons
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Cited by 16 •
2015
Compound muscle action potential recording quantitatively assesses functional diaphragm innervation by phrenic motor neurons. Whole-mount diaphragm immunohistochemistry assesses morphological innervation at individual neuromuscular junctions. The goal of this protocol is to demonstrate how these two powerful methodologies can be used in various rodent models of spinal cord disease.
04:02
Drosophila In Vivo Calcium Imaging: A Method for Functional Imaging of Neuronal Activity
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2023
This video describes in vivo calcium imaging in Drosophila neurons using GCaMP. The featured protocol clip shows how to record changes in GCaMP fluorescence from mushroom body neurons during an olfactory conditioning experiment.
FAQs
Membrane potential provides a changing electrical state through which a neuron integrates incoming information. Different inputs can alter this state, and their combined effect determines whether depolarization reaches the threshold required for an action potential. This integration step allows individual neurons to transform multiple signals into a defined output for downstream neural communication.
Threshold serves as the decision point for converting graded changes in membrane potential into an action potential. If depolarization reaches that level, the signal travels along the axon rather than remaining a local change. This relationship gives neural signaling a consistent trigger and links input integration to neurotransmitter release at a synapse.
An action potential carries the result of neuronal integration along the axon to a synapse. Its arrival triggers neurotransmitter release, allowing the signal to influence a neighboring cell. This sequence connects electrical activity within one neuron to cellular signaling between neurons, providing a mechanism through which individual cells can participate in larger neural circuits.
Experimental studies can focus on electrical activity, synaptic communication, or cellular signaling. Examining these processes helps investigators connect membrane-potential changes with action-potential transmission and neurotransmitter release, then relate cellular events to circuit behavior. Such work provides a biological basis for studying how nervous-system activity supports sensation, movement, cognition, and regulation.
Neurons contribute to behavior and learning through their participation in neural circuits. Studying how cells integrate inputs, transmit action potentials, and communicate at synapses helps researchers connect cellular signaling with circuit-level activity. These relationships provide a framework for investigating how nervous-system processes support observed behaviors and changes associated with learning.
Investigating neuron function helps identify how altered electrical activity, synaptic communication, or cellular signaling may contribute to neurological disorders. The same principles also guide research on brain development and disease mechanisms. By connecting cellular events with circuit and behavioral outcomes, studies can inform potential therapeutic strategies without treating any single process as an isolated cause.