Results 61 to 70 of about 500,266 (287)

Decreased Phase–Amplitude Coupling Between the mPFC and BLA During Exploratory Behaviour in Chronic Unpredictable Mild Stress-Induced Depression Model of Rats

Frontiers in Behavioral Neuroscience, 2021
Depression is a common neuropsychiatric illness observed worldwide, and reduced interest in exploration is one of its symptoms. The control of dysregulated medial prefrontal cortex (mPFC) over the basolateral amygdala (BLA) is related to depression ...
Zihe Wang, Qingying Cao, Wenwen Bai, Xuyuan Zheng, Tiaotiao Liu   +4 more
doaj   +1 more source

Quantification of Phase-Amplitude Coupling in Neuronal Oscillations: Comparison of Phase-Locking Value, Mean Vector Length, Modulation Index, and Generalized-Linear-Modeling-Cross-Frequency-Coupling

Frontiers in Neuroscience, 2019
Phase-amplitude coupling is a promising construct to study cognitive processes in electroencephalography (EEG) and magnetencephalography (MEG). Due to the novelty of the concept, various measures are used in the literature to calculate phase-amplitude ...
Mareike J. Hülsemann, Ewald Naumann, Björn Rasch   +2 more
doaj   +1 more source

Improving emotional-action control by targeting long-range phase-amplitude neuronal coupling

eLife, 2020
Control over emotional action tendencies is essential for everyday interactions. This cognitive function fails occasionally during socially challenging situations, and systematically in social psychopathologies. We delivered dual-site phase-coupled brain
Bob Bramson, Hanneke EM den Ouden, Ivan Toni, Karin Roelofs   +3 more
doaj   +1 more source

All-optical $\mathcal{PT}$-symmetric amplitude to phase modulator

, 2015
We study electromagnetic field propagation through a planar three-waveguide coupler with linear gain and loss, in a configuration that is the optical analog of a quantum $\mathcal{PT}$-symmetric system, and provide its closed-form analytic propagator. At
Gutiérrez, Oscar Ignacio Zaragoza, Mendoza, Luis Felipe Salinas, Rodríguez-Lara, B. M.   +2 more
core   +1 more source

Bimodal coupling of ripples and slower oscillations during sleep in patients with focal epilepsy. [PDF]

, 2017
OBJECTIVE: Differentiating pathologic and physiologic high-frequency oscillations (HFOs) is challenging. In patients with focal epilepsy, HFOs occur during the transitional periods between the up and down state of slow waves.
Bragin, Anatol, Chervoneva, Inna, Dewar, Sandra, Engel, Jerome, Fried, Itzhak, Gorniak, Richard, Orosz, Iren, Salamon, Noriko, Sharan, Ashwini, Song, Inkyung, Sperling, Michael R., Staba, Richard, Waldman, Zachary J., Weiss, Shennan A., Wu, Chengyuan   +14 more
core   +2 more sources

Measuring Phase–Amplitude Coupling Effect with OPM-MEG

Photonics
Optically pumped magnetometers (OPMs) present a promising opportunity to advance magnetoencephalography (MEG), enhancing the accuracy of neuronal activity recordings due to their high spatiotemporal resolution.
Yong Li, Hao Lu, Chunhui Wang, Fuzhi Cao, Jianzhi Yang, Binyi Su, Ying Liu, Xiaolin Ning   +7 more
doaj   +1 more source

Phase–Amplitude Coupling and Epileptogenic Zone Localization of Frontal Epilepsy Based on Intracranial EEG

Frontiers in Neurology, 2021
Objective: This study aimed to explore the characteristics of phase-amplitude coupling in patients with frontal epilepsy based on their electrocorticography data, in order to identify the localization of epileptic regions and further guide clinical ...
Huijuan Ma, Zeyu Wang, Chunsheng Li, Jia Chen, Jia Chen, Jia Chen, Yuping Wang, Yuping Wang, Yuping Wang   +8 more
doaj   +1 more source

Molecular bases of circadian magnesium rhythms across eukaryotes

FEBS Letters, EarlyView.
Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley   +1 more source

Deterministic approach to decoupling amplitude from phase via a single-layered metasurface

Materials & Design, 2023
Controlling the phase and amplitude of reflected waves has been challenging due to the inherent coupling between them. Changes in the phase of a wave often result in changes in its amplitude, and vice versa.
Fang Yuan, Qiang Chen, Yuejun Zheng, Weipeng Wan, Liang Ding, Zhanshan Sun, Yunqi Fu   +6 more
doaj   +1 more source

Interplay between circadian and other transcription factors—Implications for cycling transcriptome reprogramming

FEBS Letters, EarlyView.
This perspective highlights emerging insights into how the circadian transcription factor CLOCK:BMAL1 regulates chromatin architecture, cooperates with other transcription factors, and coordinates enhancer dynamics. We propose an updated framework for how circadian transcription factors operate within dynamic and multifactorial chromatin landscapes ...
Xinyu Y. Nie, Jerome S. Menet
wiley   +1 more source