Anesthetized Rat
Anesthetized Rat - Related Videos
05:45
Recording Large-scale Neuronal Ensembles with Silicon Probes in the Anesthetized Rat
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Cited by 24 •
2011
Extracellular recordings of neuronal activity using silicon probes in the anesthetized rat will be described. This technique allows information to be obtained across multiple brain areas from more than 100 neurons simultaneously. It provides information with single cell resolution about neuronal ensembles dynamics in multiple local circuits.
10:30
Simultaneous Recording of Electroretinography and Visual Evoked Potentials in Anesthetized Rats
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Cited by 13 •
2016
This protocol describes simultaneous measurement of electroretinogram and visual evoked potentials in anesthetized rats.
04:17
Concurrent Electroencephalographic and Local Field Potential Recordings in an Anesthetized Rat
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2025
This video demonstrates the procedure for concurrent recordings of co-localized electroencephalography (EEG) and local field potentials (LFPs) in an anesthetized rat. The process involves preparing the rat and attaching stimulating electrodes to its whisker pads. An EEG spider electrode is placed on the rat's skull for surface EEG measurements. At the same time, a multi-channel microelectrode is inserted into a specific brain region through a burr hole in the skull to record neural activity...
08:05
Electrophysiological Methods to Assess Peripheral Pain Block in an Anesthetized Rat
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2025
Here, we present a method for assessing the activation and block of sensory axons in peripheral nerves in acute, anesthetized, in vivo rat experiments using two types of spinal electrophysiological measurements that can discriminate the activity of nerve fiber subtypes: Local Field Potentials and Wide Dynamic Range single neuron recordings.
05:12
Repeated Blood Collection from Tail Vein of Non-Anesthetized Rats with a Vacuum Blood Collection System
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Cited by 25 •
2017
Here, we describe a simple tail vein blood sampling method in non-anesthetized rats using a vacuum extraction tube system. This method reduces the risk of direct exposure to blood and simplifies taking multiple samples from a single venipuncture.
FAQs
Anesthesia suppresses sensory processing, reflexes, and motor activity through effects on the central nervous system. These changes can reduce movement and procedural stress, but they also modify neuronal activity during an experiment. Consequently, electrophysiological recordings, stimulation responses, imaging results, and other measurements must be interpreted in relation to the anesthetic state.
Anesthetic depth affects the degree of unconsciousness or reduced responsiveness, as well as neural activity and physiological stability. Too shallow or too deep a state can change experimental measurements and complicate comparisons between preparations. Maintaining and documenting an appropriate level therefore supports more consistent, interpretable, and reproducible neuroscience findings.
Respiration and cardiovascular function are key variables because anesthesia influences central nervous system activity while the experiment proceeds. Monitoring these functions helps researchers assess physiological stability and identify changes that could affect neural recordings, stimulation, imaging, or neuroanatomical procedures. Such monitoring also supports the ethical conduct of work involving the animal.
Researchers should select an anesthetic approach and monitor its depth throughout the experiment rather than treating anesthesia as a fixed background condition. They must consider how the preparation affects neuronal activity, reflexes, motor activity, respiration, and cardiovascular function. This control links procedural stability with valid interpretation of the resulting neuroscience data.
This preparation supports several procedures that require reduced movement and precise control, including electrophysiological recordings, neural stimulation, imaging, and neuroanatomical procedures. The resulting stability can help researchers collect measurements or perform interventions more consistently. Each application still requires attention to anesthetic effects because the preparation can influence neural activity and physiological state.
Anesthetic selection matters because the agent and resulting depth can alter neuronal activity, sensory processing, reflexes, motor activity, and physiological variables. Those changes may influence the measurements obtained during recording, stimulation, imaging, or anatomical work. Careful selection and monitoring therefore contribute to experimental validity, reproducibility, and the ethical treatment of the animal.