Plethysmography Recording
Plethysmography Recording - Related Videos
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Simultaneous Plethysmography and Electromyography Recording in an ALS Mouse Model
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2025
Source: Jensen, V. N., et al. Repeated Measurement of Respiratory Muscle Activity and Ventilation in Mouse Models of Neuromuscular Disease. J. Vis. Exp. (2017).This video demonstrates the method for recording simultaneous plethysmography and electromyography signals in a freely moving ALS mouse model. The procedure involves using implanted electrodes and a transmitter to capture muscle activity, alongside a plethysmography chamber to monitor breathing patterns, to investigate the role of...
08:51
Measuring Respiratory Function in Mice Using Unrestrained Whole-body Plethysmography
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Cited by 70 •
2014
The assessment of respiratory physiology has traditionally relied upon techniques, which require restraint or sedation of the animal. Unrestrained whole-body plethysmography, however, provides precise, non-invasive, quantitative analysis of respiratory physiology in animal models. In addition, the technique allows repeated respiratory assessment of mice allowing for longitudinal studies.
07:27
Simplified Whole Body Plethysmography to Characterize Lung Function During Respiratory Melioidosis
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2023
This protocol presents the construction and use of a Simplified Whole Body Plethysmography apparatus to monitor bacterial respiratory disease progression non-invasively.
09:13
Method to Obtain Pattern of Breathing in Senescent Mice through Unrestrained Barometric Plethysmography
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Cited by 1 •
2020
Unrestrained barometric plethysmography is used to quantify the pattern of breathing in awake mice. We show that 15 s segments under a standardized protocol display similar values to an extended duration of quiet breathing. This methodology also allows for the quantification of apnea and augmented breaths during the first hour in the chamber.
08:58
Assessment of Respiratory Function in Conscious Mice by Double-chamber Plethysmography
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Cited by 23 •
2018
The objective of the present article is to provide a detailed description of the recommended procedures to evaluate respiratory function in conscious mice by double-chamber plethysmography.
FAQs
The sensor and recording site determine which volume-related change dominates the signal. A vascular placement can emphasize blood-flow changes, whereas a respiratory-oriented placement can capture breathing-related expansion and contraction. Because the same general approach can monitor different physiological sources, researchers must interpret the trace in relation to the body region and signal type being measured.
Plethysmography signals may reflect changes associated with blood flow, respiration, or other forms of tissue expansion. These sources are not interchangeable: vascular changes can indicate peripheral circulatory responses, while respiratory changes reveal breathing patterns. Identifying the physiological origin of a signal helps researchers connect the recorded waveform to the bodily process under investigation.
Different sensors can convert volume-related physiological changes into either continuous electrical or optical signals. The signal format reflects how the sensor detects and represents the underlying change, rather than indicating a different physiological purpose by itself. This flexibility allows recordings to be adapted to vascular, respiratory, or other tissue-volume measurements relevant to neuroscience experiments.
A typical workflow begins by selecting a sensor and body site suited to the physiological target, then collecting the resulting signal continuously while a participant completes a sensory, cognitive, or emotional task. Researchers can subsequently align the physiological recording with neural or behavioral measurements, allowing changes in peripheral physiology to be examined alongside task-related responses.
Researchers use plethysmography when they need information about bodily responses that accompany brain or behavioral activity. It can quantify peripheral vascular reactions, breathing patterns, and autonomic nervous system activity during sensory, cognitive, or emotional tasks. These measures complement neural recordings by showing how task engagement is associated with changes outside the central nervous system.
In neuroscience, the method helps connect brain activity with whole-body physiology. When synchronized with neural or behavioral measures, its continuous recordings can reveal whether changes in peripheral vascular activity or respiration accompany a task, stimulus, or behavior. This provides an autonomic and bodily context for interpreting neural responses during sensory, cognitive, and emotional investigations.