Oscillation Amplitude
Oscillation Amplitude - Related Videos
02:39
In Vitro Recording of Theta Oscillations in the Mouse Hippocampus
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2025
This video demonstrates the recording of rhythmic neuronal network activity, also known as theta oscillations, in an isolated hippocampus. Electrodes are inserted into various layers and spatial positions to detect and analyze theta oscillations. This shows the unique neuronal compositions and the connectivity of the neuronal network across different layers of the hippocampus.
06:34
Infant Auditory Processing and Event-related Brain Oscillations
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Cited by 30 •
2015
High-density electroencephalography (dEEG) is being used increasingly to study brain development and plasticity in the early years of life. Here we present an application of sophisticated analysis techniques that builds on traditional EEG recording to understand the oscillatory dynamics of rapid auditory processing in the infant brain.
09:35
Automatic Detection of Highly Organized Theta Oscillations in the Murine EEG
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Cited by 5 •
2017
Theta activity in the hippocampus is related to specific cognitive and behavioral stages. Here, we describe an analytical method to detect highly-organized theta oscillations within the hippocampus using a time-frequency (i.e., wavelet analysis)-based approach.
10:25
Sub-nanometer Resolution Imaging with Amplitude-modulation Atomic Force Microscopy in Liquid
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Cited by 39 •
2016
We present a method for achieving sub-nanometer resolution images with amplitude-modulation (tapping mode) atomic force microscopy in liquid. The method is demonstrated on commercial atomic force microscopes. We explain the rationale behind our choices of parameters and suggest strategies for resolution optimization.
09:04
Recording Gamma Band Oscillations in Pedunculopontine Nucleus Neurons
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Cited by 3 •
2016
The pedunculopontine nucleus (PPN) is located in the brainstem and its neurons are maximally activated during waking and rapid eye movement (REM) sleep brain states. This work describes the experimental approach to record in vitro gamma band subthreshold membrane oscillation in PPN neurons.
FAQs
For a harmonic oscillator, the starting displacement and motion establish the subsequent maximum excursion, so the amplitude is not an arbitrary label. The same quantity also determines the oscillator’s total energy through E = ½kA². Consequently, changing the initial conditions changes the stored energy, with a larger amplitude corresponding to greater energy when the spring constant remains fixed.
Amplitude provides a direct way to follow energy loss in an oscillating system. If successive excursions become smaller, the motion is damped and the system is losing energy. If the amplitude remains steady, the oscillation is stable over the observed interval. Monitoring this change helps identify whether the system maintains its motion or gradually decays.
Resonance is identified through characteristic changes in amplitude, making amplitude an important observable in periodic systems. Rather than treating the motion only as a timing pattern, physicists examine how large the oscillation becomes. This connects the observed response with resonance in pendulums, springs, vibrations, waves, and alternating electrical signals.
For a harmonic spring system, measuring the amplitude and knowing the spring constant allows the total energy to be calculated with E = ½kA². This relation shows that energy depends on the square of the amplitude, so changes in amplitude produce corresponding changes in stored energy. It provides a quantitative link between motion and mechanical energy.
In waves and alternating electrical signals, amplitude gives a way to characterize the size of the periodic variation. Physicists can therefore compare signal or wave strength through its displacement or signal magnitude and monitor how that magnitude changes. Such observations support studies of vibrations, wave behavior, and electrical oscillations within a common measurement framework.
Pendulums, springs, mechanical vibrations, waves, and alternating electrical signals can all be described using amplitude, even though their physical components differ. Using this shared quantity lets physicists discuss the size of periodic motion across distinct systems. Comparing amplitude changes also helps identify damping, energy loss, resonance, and stability in the relevant system.