Electrical Signal Recording
Electrical Signal Recording - Related Videos
14:16
A New Application of the Electrical Penetration Graph (EPG) for Acquiring and Measuring Electrical Signals in Phloem Sieve Elements
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Cited by 24 •
2015
Electrical Penetration Graph (EPG) is a well-established technique for studying the feeding behavior of stylet-bearing insects. Here we show a new application of EPG as a non-invasive tool for the acquisition of intracellular electrophysiology recordings of sieve elements (SEs), the cells that form the phloem vasculature in plants.
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.
04:06
Monitoring Electrical Signals from the Afferent Neurons in an Immobilized Zebrafish Larva
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2025
This video demonstrates the recording of electrical signals from the afferent neurons in a paralyzed zebrafish larva by positioning a micropipette near the lateral line ganglion and forming a loose seal for signal capture. The extracellular solution maintains neuronal viability during this process.
06:15
Zebra II as A Novel System to Record Electrophysiological Signals in Zebrafish
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2024
The study introduces Zebra II, an advanced system for prolonged ECG acquisition and analysis in zebrafish. This system features an independent perfusion system and multiple-point electrodes for handling multiple fish in controlled environments. Acute effects of Amiodarone were assessed and analyzed with wild-type zebrafish.
02:43
Recording Electrically-Evoked Auditory Brainstem Responses in a Deafened Mouse
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2025
This video demonstrates the procedure to implant a cochlear device in a deafened mouse and apply electrical stimuli to record auditory brainstem responses. This procedure enables to understand the basic mechanisms of electrical hearing and can contribute to advancements in cochlear implant technology and auditory neuroscience.
FAQs
The recording configuration determines which electrical relationships become visible. Intracellular and extracellular approaches detect different potential differences, allowing researchers to examine activity associated with individual excitable cells, surrounding tissue, or broader neural circuits. This distinction helps investigators select measurements suited to cellular function, synaptic activity, coordinated oscillations, or circuit-level responses.
These processing stages turn detected voltage changes into usable records. Amplification increases the measurable signal, filtering prepares the recording for analysis, and digitization converts the signal into a computer-readable form. Together, they preserve changes over time so researchers can examine action potentials, synaptic activity, and coordinated neural oscillations.
Electrical recordings can capture several levels of neural activity, including action potentials, synaptic activity, and coordinated oscillations. These signals provide different views of nervous-system function, from activity associated with excitable cells to patterns emerging across neural circuits. Comparing these signal types helps connect electrical events with cellular function, sensory processing, behavior, or disease.
These methods provide complementary views of neural electrical activity. Patch-clamp recording supports investigation of cellular function, electroencephalography captures coordinated neural oscillations, and multi-electrode arrays enable recordings involving multiple measurement sites. Using the appropriate method allows researchers to relate activity across cellular, tissue, and circuit contexts rather than relying on a single electrical perspective.
A typical workflow begins by placing an appropriate electrode configuration to detect potential differences, followed by amplification, filtering, and digitization of the recorded signal. Researchers then examine the resulting activity over time and relate patterns such as action potentials, synaptic events, or oscillations to the experimental question, including cellular function, behavior, or disease.
Researchers choose this approach when they need a direct view of nervous-system electrical activity and want to connect that activity with function. It is useful for studying cellular responses, sensory processing, behavior, brain connectivity, and neural dynamics. The method also supports investigations of neurological disorders when electrical changes may provide relevant diagnostic or therapeutic information.
Recorded neural signals can reveal patterns of brain activity relevant to connectivity, dynamics, and neurological disorders. This information supports development of neural interfaces, diagnostic tools, and therapies by linking measurable electrical activity with nervous-system function. In this context, recordings serve both as research measurements and as a foundation for translating neural activity into practical biomedical applications.