Neuron Imaging
Neuron Imaging - Related Videos
08:43
Calcium Imaging in Neurons
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2023
Calcium ions play an integral role in neuron function: They act as intracellular signals that can elicit responses such as altered gene expression and neurotransmitter release from synaptic vesicles. Within the cell, calcium concentration is highly dynamic due to the presence of pumps that selectively transport these ions in response to a variety of signals. Calcium imaging takes advantage of intracellular calcium flux to directly visualize calcium signaling in living neurons.This video begins...
11:06
In vivo Neuronal Calcium Imaging in C. elegans
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Cited by 20 •
2013
With its small transparent body, well-documented neuroanatomy and a host of amenable genetic techniques and reagents, C. elegans makes an ideal model organism for in vivo neuronal imaging using relatively simple, low-cost techniques. Here we describe single neuron imaging within intact adult animals using genetically encoded fluorescent calcium indicators.
03:45
Visualization of Vesicle Motilities in Neurons Using Fluorescence Imaging
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2025
This video demonstrates how neuronal vesicles are labeled with specific fluorescent proteins to visualize their movement. First, a plasmid coding for a fluorescent protein is incubated with a transfection agent and then introduced into a culture of neurons. Subsequently, images of the neurons are acquired and analyzed to track the vesicles' movement.
12:15
Calcium Imaging of Cortical Neurons using Fura-2 AM
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Cited by 108 •
2009
Calcium signals play a key role in many cellular processes including gene expression, survival and differentiation. Here we demonstrate how to perform calcium imaging using Fura-2 AM. Calcium imaging is a valuable tool to study the regulation of intracellular calcium in real time and its regulation of signaling cascades.
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
Fluorescence microscopy can make cellular features optically detectable, supporting examination of neuronal morphology and synaptic organization. Calcium imaging instead uses changes in intracellular calcium as signals associated with neural activity, allowing investigators to examine responses to stimuli and circuit dynamics. Comparing these readouts helps match structural organization with functional behavior.
Genetically encoded indicators convert changes in intracellular calcium into detectable optical signals. This mechanism gives researchers a way to monitor activity while relating the signal to individual neurons or neural circuits. In neuroscience, such indicators are especially useful when the question concerns how circuits respond to stimuli, change during learning, or differ under disease-related conditions.
Spatial resolution helps distinguish fine cellular features, synaptic organization, and connections, whereas temporal resolution supports analysis of changing activity and circuit dynamics. Because neural processing includes both arrangement and response over time, considering both dimensions can produce a more precise account of how information moves through neural systems. The appropriate emphasis depends on whether a study targets morphology, activity, or connectivity.
A study focused on neuronal morphology, synaptic organization, or circuit dynamics may require different optical readouts. Fluorescence microscopy is suited to visualizing cellular features, while calcium imaging and genetically encoded indicators address activity-related changes. Researchers can therefore align the method with whether they need structural information, stimulus responses, or changing circuit behavior.
By visualizing neuronal structure, activity, or connections, these approaches can support mapping brain networks and examining how neural circuits respond to stimuli. They also contribute to studies of learning by linking circuit behavior with observable optical signals. The resulting data help refine models of neural function rather than treating brain activity as an undifferentiated process.
Imaging can reveal disease-related changes in neuronal morphology, synaptic organization, circuit dynamics, or stimulus responses. Those observations give neuroscience researchers a way to compare neural structure and function under altered conditions and to evaluate how closely experimental findings fit models of dysfunction. In turn, this information can support more precise models of neural function and potential therapeutic strategies.