Neuronal Signal Recording
Neuronal Signal Recording - Related Videos
02:36
In Vivo Recording of Intracellular Signals from a Single Neuron
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2025
This video demonstrates the recording of electrical signals from single brain neurons using a fine-tipped glass micropipette and a specialized setup. The micropipette is carefully inserted into the rat's brain and is buzzed to penetrate the neuron to record internal neuronal electrical signals.
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.
06:55
Simultaneous Recording of Calcium Signals from Identified Neurons and Feeding Behavior of Drosophila melanogaster
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Cited by 19 •
2012
The fruit fly, Drosophila melanogaster, extends its proboscis for feeding, responding to a sugar stimulus from its proboscis or tarsus. I have combined observations of the proboscis extension response (PER) with a calcium imaging technique, allowing us to monitor the activity of neurons in the brain, simultaneously with behavioral observation.
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.
03:49
Recording Cortical and Subcortical Neuronal Activity Using Electrode Systems
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2025
This video demonstrates the process of recording cortical and subcortical neuronal activity using electroencephalography (EEG) and deep brain stimulation (DBS) electrodes during an attention-based visual stimulation test.
FAQs
Changes in ion channel opening and closing alter the voltage across a neuronal membrane. Recordings can therefore reveal membrane voltage fluctuations and action potentials, which are generated when these electrical changes reach the relevant pattern of activity. This distinction helps investigators examine how neurons produce and transmit signals rather than treating all recorded activity as a single signal type.
Intracellular approaches monitor signals inside or across a neuron, while extracellular electrodes detect activity outside cells, including field potentials and action potentials. Optical sensors provide another way to monitor intracellular signals, and chemical sensors can track neurotransmitter release. These options differ in the kind of electrical or chemical information they expose, allowing researchers to match a recording approach to the process under study.
The recording scale determines whether the data describe an individual neuron, a brain region, or a broader neural network. Single-neuron recordings can show cellular activity, whereas regional and network recordings reveal coordinated patterns. Comparing these levels helps connect neuronal signaling with larger processes such as connectivity, sensory processing, learning, and disease-related dysfunction.
Patterns in recorded activity can provide evidence about how neural elements communicate and process information. Depending on the recording target, researchers may examine connectivity, sensory processing, learning-related activity, or abnormalities associated with disease. The value lies not only in detecting a signal, but also in interpreting its pattern across cells, regions, or networks.
Researchers select an approach according to the signal they need to observe and the scale of the question. Electrodes may be appropriate for voltage changes, extracellular field potentials, or action potentials, while optical and chemical sensors can address intracellular signals or neurotransmitter release. The chosen method therefore links the measurement type to the biological process being investigated.
Recordings from neurons, brain regions, and neural networks provide data for examining communication and information processing in the nervous system. Researchers can relate recorded patterns to connectivity, sensory processing, and learning. This makes the measurements useful for connecting cellular electrical or chemical activity with broader aspects of brain function.
In neuroscience, these measurements help investigate normal brain activity and disease-related dysfunction. The resulting information also supports neurotechnology and the development of diagnostic tools and therapeutic interventions. Because recordings can capture electrical activity, intracellular signals, or neurotransmitter release, they offer several routes for connecting neural mechanisms with potential clinical and technological applications.