Physiological Recording Synchronization
Physiological Recording Synchronization - Related Videos
09:02
AC Synchronous Machine Synchronization
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2023
Source: Ali Bazzi, Department of Electrical Engineering, University of Connecticut, Storrs, CT. Three-phase wound-rotor synchronous generators are the main source of electrical power worldwide. They require a prime mover and an exciter in order to generate power. The prime mover can be a turbine spun by fluid (gas or liquid), thus the sources of the fluid can be water running off a dam through a long nozzle, steam from water evaporated using burned coal, etc. Most power plants including coal,...
10:00
Physiological Recordings of High and Low Output NMJs on the Crayfish Leg Extensor Muscle
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Cited by 13 •
2010
This article demonstrates how to conduct electrophysiological recordings of synaptic responses on the extensor muscle in the walking leg of a crayfish and how the nerve terminals are visualized to show the gross morphological differences of high- and low-output nerve terminals.
11:19
AC Synchronous Machine Characterization
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2023
Source: Ali Bazzi, Department of Electrical Engineering, University of Connecticut, Storrs, CT. Three-phase wound-rotor synchronous motors are less popular than permanent magnet rotor synchronous motors due to the brushes required for the rotor field. Synchronous generators are much more common and available in most existing power plants, as they have excellent frequency and voltage regulation. Synchronous motors have the advantage of almost 0% speed regulation due to the fact that the rotor...
05:33
Physiology of the Circulatory System - Concepts
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2019
Homeostasis Conditions in the external environment of an organism can change rapidly and drastically. To survive, organisms must maintain a fairly constant internal environment, which involves continuous regulation of temperature, pH, and other factors. This balanced state is known as homeostasis, which describes the processes by which organisms maintain their optimal internal conditions. To maintain homeostasis, organisms have developed structures with distinct functions. Physiology is the...
11:34
Basic Caenorhabditis elegans Methods: Synchronization and Observation
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Cited by 452 •
2012
The easiness of maintaining and propagating the nematode C. elegans make it a nice model organism to work with. The possibility of synchronizing worms allows the work with a significant amount of subjects at the same developmental stage, what facilitates the study of one particular process in many animals.
FAQs
A shared clock gives recording systems a common temporal reference, while a hardware trigger can mark the exact onset of a behavioral event across connected streams. These mechanisms reduce uncertainty about when each signal was acquired relative to a stimulus, movement, or choice. As a result, researchers can compare neural, cardiac, respiratory, or muscle changes using a consistent time base.
Event markers identify meaningful moments in a behavioral task, such as stimulus presentation, movement, or decision-related events. Timestamps attach those moments to a recorded time sequence, allowing physiological signals to be examined before, during, and after each event. When separate systems produce timing offsets, these markers help place the streams on a shared timeline and support more accurate comparisons.
Even when behavioral and physiological systems record the same experiment, their time bases may not initially align. A timing offset can make a physiological response appear earlier or later than the behavior that accompanies it, weakening conclusions about temporal relationships. Correcting the offset improves temporal precision and reduces synchronization errors when studying arousal, motor control, brain-body relationships, or decision-making.
Researchers first identify the physiological streams and behavioral events that must be compared, then establish a shared timing reference using clocks, triggers, event markers, or timestamped streams. They place the recordings on a common timeline and correct measurable timing offsets before analysis. This workflow enables event-centered examination of signal changes surrounding movements, choices, or stimuli.
The approach can align several biological signals with observable behavior, including neural, cardiac, respiratory, and muscle activity. The relevant signal depends on the research question: neural recordings may support brain-body analyses, while cardiac or respiratory activity can inform studies of arousal. Muscle activity is especially relevant when relating physiology to movement and motor control.
Synchronization is particularly valuable when a study asks how internal physiological states change around precisely defined actions or task events. It supports analyses of responses before, during, and after movements, choices, or stimuli, rather than treating an entire trial as temporally uniform. This makes it useful for investigating arousal, motor control, decision-making, and relationships between brain and body.