Single Neuron Activation
Single Neuron Activation - Related Videos
05:45
Recording Electrophysiological Activity of the Neuronal Network in a Neuron-Astrocyte Co-culture
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2025
This video demonstrates establishing a neuron-astrocyte co-culture for recording neuronal network activity. Upon establishing the co-culture of motor neurons and astrocytes on a multi-electrode array (MEA) plate, the synchronous rhythmic electrical activity of the neuronal network was recorded extracellularly using the MEA.
08:48
Optical Recording of Suprathreshold Neural Activity with Single-cell and Single-spike Resolution
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Cited by 1 •
2012
Understanding the function of the vertebrate central nervous system requires recordings from many neurons because cortical function arises on the level of populations of neurons. Here we describe an optical method to record suprathreshold neural activity with single-cell and single-spike resolution, dithered random-access scanning. This method records somatic fluorescence calcium signals from up to 100 neurons with high temporal resolution. A maximum-likelihood algorithm deconvolves the...
07:25
Optogenetic Activation of Zebrafish Somatosensory Neurons using ChEF-tdTomato
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Cited by 6 •
2013
Optogenetic techniques have made it possible to study the contribution of specific neurons to behavior. We describe a method in larval zebrafish for activating single somatosensory neurons expressing a channelrhodopsin variant (ChEF) with a diode-pumped solid state (DPSS) laser and recording the elicited behaviors with a high-speed video camera.
04:25
Simultaneous Eye Tracking and Single-Neuron Recording to Identify Target-Selective Neurons
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2025
The video demonstrates an assay to identify target-selective neurons via simultaneous eye-tracking and single-neuron recordings. A human participant is tasked with identifying a target object among an array of objects in a display, and the eye movement is tracked. Simultaneously, single neurons' firing rate is recorded via electrodes implanted in the brain. The data from both recordings are correlated to assess the presence of target-selective neurons.
09:06
Preparation of Neuronal Co-cultures with Single Cell Precision
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Cited by 6 •
2014
Protocols for single neuron microfluidic arraying and water masking for the in-chip plasma patterning of biomaterial coatings are described. Highly interconnected co-cultures can be prepared using minimal cell inputs.
FAQs
As the membrane depolarizes to threshold, voltage-gated ion channels open and generate an action potential. This electrical event then propagates along the axon, allowing researchers to examine how a localized change in membrane state becomes a transmitted neural signal. Measuring this sequence connects cellular excitability with later communication between neurons.
Axonal propagation shows whether activation produces a signal that can travel beyond the stimulated region. Because the action potential moves along the axon, researchers can relate the initial electrical response to synaptic communication and circuit activity. This helps distinguish a local membrane event from a response capable of influencing other parts of the nervous system.
Targeted electrical stimulation, intracellular methods, and light-sensitive approaches can be selected according to the experimental design. Some designs focus on evoking activation, whereas others emphasize monitoring the resulting electrical response. Comparing these approaches helps researchers examine neuronal excitability under conditions suited to studying information transmission, circuit function, or sensory processing.
An investigation generally begins by selecting an approach suited to the question, such as targeted electrical stimulation, an intracellular method, or a light-sensitive approach. Researchers then evoke or monitor the individual cell's electrical response and examine whether membrane depolarization reaches threshold. The resulting action potential provides a basis for interpreting neuronal signaling.
Measurements can reveal how neuronal excitability contributes to information encoding and transmission. When the response is considered alongside axonal propagation and synaptic communication, it can also help link cellular activity to neural circuit function. These observations support studies of how sensory processing and behavior emerge from electrical events in individual neurons.
This approach is useful when researchers need to connect activity in one nerve cell with broader nervous-system function. Applications include investigations of synaptic communication, neural circuits, sensory processing, and behavior. It also supports research into neurological disorders and emerging neurotechnology by providing a cellular perspective on controlled neural activity.