Results 1 to 10 of about 6,778,426 (314)

Cross-Frequency Coupling and Intelligent Neuromodulation

open access: yesCyborg and Bionic Systems, 2023
Cross-frequency coupling (CFC) reflects (nonlinear) interactions between signals of different frequencies. Evidence from both patient and healthy participant studies suggests that CFC plays an essential role in neuronal computation, interregional ...
C. Yeh   +5 more
semanticscholar   +5 more sources

Strong coupling of collective intermolecular vibrations in organic materials at terahertz frequencies [PDF]

open access: yesNature Communications, 2019
Here, the authors demonstrate strong coupling between collective, terahertz inter-molecular vibrations of organic materials and a Fabry-Pérot cavity. These results extend the applicability of polaritonic chemistry to large-scale organic systems, such as ...
Ran Damari   +7 more
doaj   +2 more sources

Phase-amplitude coupling and infraslow (<1Hz) frequencies in the rat brain: relationship to resting state fMRI

open access: yesFrontiers in Integrative Neuroscience, 2014
Resting state functional magnetic resonance imaging (fMRI) can identify network alterations that occur in complex psychiatric diseases and behaviors, but its interpretation is difficult because the neural basis of the infraslow BOLD fluctuations is ...
Garth John Thompson   +6 more
doaj   +2 more sources

Genuine cross-frequency coupling networks in human resting-state electrophysiological recordings.

open access: yesPLoS Biology, 2020
Phase synchronization of neuronal oscillations in specific frequency bands coordinates anatomically distributed neuronal processing and communication. Typically, oscillations and synchronization take place concurrently in many distinct frequencies, which
Felix Siebenhühner   +6 more
doaj   +2 more sources

A two-frequency-two-coupling model of coupled oscillators [PDF]

open access: yesChaos: An Interdisciplinary Journal of Nonlinear Science, 2021
We considered the phase coherence dynamics in a Two-Frequency and Two-Coupling (TFTC) model of coupled oscillators, where coupling strength and natural oscillator frequencies for individual oscillators may assume one of two values (positive/negative).
Hyunsuk Hong, Erik A. Martens
openaire   +4 more sources

Method for Adjusting Torsional Natural Frequencies of Powertrains with Novel Coupling Design

open access: yesMachines, 2022
Torsional vibrations are inherently present in every rotating powertrain. In resonant conditions, torsional vibrations can be significantly amplified. A typical method to reduce the torsional vibration particularly at resonance is to modify the torsional
Kalle Kinnunen   +3 more
doaj   +1 more source

Neural Cross-Frequency Coupling Functions [PDF]

open access: yesFrontiers in Systems Neuroscience, 2017
Although neural interactions are usually characterized only by their coupling strength and directionality, there is often a need to go beyond this by establishing the functional mechanisms of the interaction. We introduce the use of dynamical Bayesian inference for estimation of the coupling functions of neural oscillations in the presence of noise. By
Tomislav Stankovski   +4 more
openaire   +4 more sources

Hardware-Efficient Microwave-Activated Tunable Coupling between Superconducting Qubits. [PDF]

open access: yesPhysical Review Letters, 2021
Generating high-fidelity, tunable entanglement between qubits is crucial for realizing gate-based quantum computation. In superconducting circuits, tunable interactions are often implemented using flux-tunable qubits or coupling elements, adding control ...
B. Mitchell   +9 more
semanticscholar   +1 more source

Shifted coupling of EEG driving frequencies and fMRI resting state networks in schizophrenia spectrum disorders. [PDF]

open access: yesPLoS ONE, 2013
INTRODUCTION: The cerebral resting state in schizophrenia is altered, as has been demonstrated separately by electroencephalography (EEG) and functional magnetic resonance imaging (fMRI) resting state networks (RSNs).
Nadja Razavi   +6 more
doaj   +1 more source

Entangling entanglement: coupling frequency and polarization of biphotons on demand [PDF]

open access: yesnpj Quantum Information, 2023
Quantum information is often carried in the frequency and polarization degrees of freedom (DoFs) in single photons and entangled photons. We demonstrate an approach to couple and decouple the frequency and polarization DoFs of broadband biphotons.
A. Riazi, E. Zhu, Dan Xu, Li Qian
semanticscholar   +1 more source

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