Suction Electrode Recording
Suction Electrode Recording - Related Videos
08:47
Spinal Cord Electrophysiology II: Extracellular Suction Electrode Fabrication
0 Views •
Cited by 2 •
2011
A demonstration of the fabrication and use of an extracellular suction electrode used to measure electrophysiological recordings of neonatal rodent spinal cords in...
14:35
Single-cell Suction Recordings from Mouse Cone Photoreceptors
0 Views •
Cited by 9 •
2010
We will show how to record flash responses from single mouse cones using a suction electrode.
08:08
Odorant-induced Responses Recorded from Olfactory Receptor Neurons using the Suction Pipette Technique
0 Views •
Cited by 13 •
2012
Olfactory receptor neurons (ORNs) convert odor signals first into a receptor current that in turn triggers action potentials that are conveyed to second order neurons in the olfactory bulb. Here we describe the suction pipette technique to record simultaneously the odorant-induced receptor current and action potentials from mouse ORNs.
03:59
Implantation of Electrodes into a Mouse Cortex for Electrocorticographic Recordings
0 Views •
2025
This video demonstrates a protocol for implanting electrocorticographic electrodes in the mouse cerebral cortex to record electrical signals in response to adeno-associated viruses that target and manipulate cofilin expression.
16:01
Multi-electrode Array Recordings of Neuronal Avalanches in Organotypic Cultures
0 Views •
Cited by 28 •
2011
A robust way to study neuronal avalanches, i.e. scale-invariant spatio-temporal activity bursts, indicative of critical state dynamics in cortex. Avalanches emerge spontaneously in developing superficial layers of cultured cortex which allows for long-term measurements of the activity with planar integrated multi-electrode arrays (MEA) under precisely controlled conditions.
FAQs
Applying gentle suction draws the membrane or nerve fiber into close contact with the electrode. This proximity improves coupling between extracellular voltage changes and the recording system, while the electrode remains outside the cell. As a result, transient electrical events such as action potentials can be detected while the preparation experiences relatively little disruption.
The close seal helps maintain a stable relationship between the electrode and the biological preparation. Stability matters because electrical signals can be recorded over time without substantially disturbing delicate cells, fibers, or small tissue preparations. This feature supports measurements of changing excitability and signaling patterns rather than only brief observations from a disrupted preparation.
The technique can reveal extracellular action potentials and other voltage changes associated with membrane excitability. Depending on the preparation, recordings may also show neural signaling, muscle activity, or synaptic responses. Examining these events helps connect the electrical behavior of individual cells or fibers with communication and coordinated function in excitable biological systems.
A researcher places a glass or plastic electrode near the selected cell, nerve fiber, or small tissue preparation, then applies gentle suction to establish close contact. The recording system monitors extracellular voltage changes under controlled experimental conditions. Researchers can then examine electrical activity while preserving the preparation sufficiently for stable observation of its signaling behavior.
Suction electrode recording is particularly useful when the preparation is delicate and researchers need stable electrical measurements with minimal disruption. It can be applied to individual cells, nerve fibers, and small tissue preparations. The method is therefore suited to experiments examining membrane excitability, neural communication, muscle electrical activity, and responses associated with synaptic signaling.
Signals recorded from a cell or fiber provide a direct view of electrical behavior that underlies biological communication. By relating action potentials, excitability changes, muscle activity, or synaptic responses to the preparation being studied, researchers can interpret how local electrical events contribute to neural signaling, muscle function, and communication across excitable systems.