Results 1 to 10 of about 500,117 (155)

Classifying epileptic phase-amplitude coupling in SEEG using complex-valued convolutional neural network [PDF]

open access: goldFrontiers in Physiology, 2023
EEG phase-amplitude coupling (PAC), the amplitude of high-frequency oscillations modulated by the phase of low-frequency oscillations (LFOs), is a useful biomarker to localize epileptogenic tissue. It is commonly represented in a comodulogram of coupling
Chunsheng Li   +4 more
doaj   +4 more sources

Theta-gamma phase amplitude coupling in a hippocampal CA1 microcircuit. [PDF]

open access: goldPLoS Computational Biology, 2023
Phase amplitude coupling (PAC) between slow and fast oscillations is found throughout the brain and plays important functional roles. Its neural origin remains unclear. Experimental findings are often puzzling and sometimes contradictory.
Adam Ponzi   +2 more
doaj   +4 more sources

Magnetoencephalography detects phase-amplitude coupling in Parkinson’s disease [PDF]

open access: goldScientific Reports, 2022
To characterize Parkinson’s disease, abnormal phase-amplitude coupling is assessed in the cortico-basal circuit using invasive recordings. It is unknown whether the same phenomenon might be found in regions other than the cortico-basal ganglia circuit ...
Masataka Tanaka   +11 more
doaj   +4 more sources

Theta-gamma phase-amplitude coupling in psychosis and healthy controls: Predicting working memory capacity across different tasks [PDF]

open access: goldNeuroImage: Clinical
Theta-gamma phase-amplitude coupling has been proposed as a possible mechanism underlying working memory. Here, we assess whether cortical theta-gamma phase-amplitude coupling is related to working memory deficits in patients with psychosis, and whether ...
Orestis Papaioannou   +5 more
doaj   +3 more sources

Phase-amplitude coupling-based adaptive filters for neural signal decoding [PDF]

open access: goldFrontiers in Neuroscience, 2023
Bandpass filters play a core role in ECoG signal processing. Commonly used frequency bands such as alpha, beta, and gamma bands can reflect the normal rhythm of the brain. However, the universally predefined bands might not be optimal for a specific task.
Jiajun Li   +5 more
doaj   +4 more sources

Is Cortical Theta-Gamma Phase-Amplitude Coupling Memory-Specific? [PDF]

open access: yesBrain Sciences, 2022
One of the proposed neural mechanisms involved in working memory is coupling between the theta phase and gamma amplitude. For example, evidence from intracranial recordings shows that coupling between hippocampal theta and cortical gamma oscillations ...
Orestis Papaioannou   +6 more
doaj   +2 more sources

State space methods for phase amplitude coupling analysis [PDF]

open access: yesScientific Reports, 2022
Phase amplitude coupling (PAC) is thought to play a fundamental role in the dynamic coordination of brain circuits and systems. There are however growing concerns that existing methods for PAC analysis are prone to error and misinterpretation.
Hugo Soulat   +3 more
doaj   +2 more sources

Effect of the addition of a low-dose of ketamine to propofol anaesthesia on the phase-amplitude coupling features of an electroencephalogram [PDF]

open access: yesBJA Open
Background: Low-dose ketamine as an adjunct to propofol-based total intravenous anaesthesia (TIVA) complicates hypnotic depth monitoring by increasing bispectral index values and altering electroencephalogram (EEG).
Ryusuke Tanaka   +3 more
doaj   +2 more sources

Control of dynamical instability in semiconductor quantum nanostructures diode lasers: role of phase-amplitude coupling [PDF]

open access: green, 2013
We numerically investigate the complex nonlinear dynamics for two independently coupled laser systems consisting of (i) mutually delay-coupled edge emitting diode lasers and (ii) injection-locked quantum nano-structures lasers.
Grillot, Frédéric, Kumar, Pramod
core   +2 more sources

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