Single Cell Recording
Single Cell Recording - Related Videos
14:35
Single-cell Suction Recordings from Mouse Cone Photoreceptors
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Cited by 9 •
2010
We will show how to record flash responses from single mouse cones using a suction electrode.
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...
11:00
Single-unit In vivo Recordings from the Optic Chiasm of Rat
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Cited by 2 •
2010
Retinal ganglion cells transmit visual information from the eye to the brain with sequences of action potentials. Here, we demonstrate how to record the action potentials of single ganglion cells in vivo from anesthetized rats.
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.
13:27
Single Sensillum Recordings in the Insects Drosophila melanogaster and Anopheles gambiae
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Cited by 46 •
2010
Electrophysiological responses of olfactory sensory neurons to odorants can be measured in insects using single sensillum recordings. In this video article we will demonstrate how to perform single sensillum recordings in the antennae of the vinegar fly (Drosophila melanogaster) and the maxillary palps of the malaria mosquito (Anopheles gambiae).
FAQs
The key measurement depends on forming a reliable electrical connection between the recording device and the cell membrane. A fine microelectrode or patch pipette then detects changes associated with membrane potential, ion movement, or action potentials. Because the signal comes from one cell, the experiment can associate a particular electrical event with that cell’s physiological response rather than with an averaged population signal.
Different electrical readouts answer different biological questions. Membrane-potential measurements show the voltage state of the cell, while ion-current measurements help characterize how ion channel activity contributes to cellular behavior. Action potentials provide a distinct electrical event for analysis. Recording these signals from one cell allows investigators to relate the measured activity to neuronal signaling, synaptic transmission, or other cellular responses.
Single-cell measurements are valuable when a population average could hide cell-to-cell differences. Recording an individual cell preserves the relationship between its electrical activity and its response to a drug or stimulus. This resolution can help researchers determine whether an observed physiological effect reflects behavior in the recorded cell, rather than assuming that every cell in the sample responds identically.
A basic workflow begins by positioning a fine microelectrode or patch pipette to establish an electrical connection with an individual cell. The experiment then records membrane potential, ion currents, or action potentials while the cell is observed under controlled conditions. Drugs or other stimuli can be included when the goal is to examine a cellular response and connect the recording to a biological effect.
Controlled conditions make the recorded electrical or physiological response easier to interpret. Investigators can examine how an individual cell responds to drugs or stimuli while measuring the resulting membrane potential, ion currents, or action potentials. Relating the applied condition to the measured signal helps connect an experimental manipulation to a specific cellular response instead of only observing a nonspecific population-level change.
In biology, single-cell recording supports studies that connect cellular electrical mechanisms with larger-scale function. It is used to investigate neuronal signaling, ion channel function, synaptic transmission, and responses to drugs or stimuli. These measurements are relevant to neuroscience, pharmacology, and disease physiology because they provide cellular evidence that can be related to tissue and organismal behavior.