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Cortical oscillations, electrophysiological activity patterns, associated with cognitive functions and impaired in many psychiatric disorders can be observed in intracranial electroencephalography (iEEG). Direct cortical stimulation (DCS)…

医学物理 · 物理学 2018-11-22 Sankaraleengam Alagapan , Hae Won Shin , Flavio Frohlich , Hau-tieng Wu

Objective: Direct cortical responses (DCR) and axono-cortical evoked potentials (ACEP) are generated by electrically stimulating the cortex either directly or indirectly through white matter pathways, potentially leading to different…

Brain function as measured by multichannel EEG recordings can be described to a high level of accuracy by microstates, characterized as a sequence of time intervals within which the sign invariant normalized scalp electric potential field…

神经元与认知 · 定量生物学 2022-08-08 Roberto D. Pascual-Marqui , Kieko Kochi , Toshihiko Kinoshita

Simultaneous real-time fMRI and EEG neurofeedback (rtfMRI-EEG-nf) is an emerging neuromodulation approach, that enables simultaneous volitional regulation of both hemodynamic (BOLD fMRI) and electrophysiological (EEG) brain activities. Here…

神经元与认知 · 定量生物学 2020-07-06 Vadim Zotev , Ahmad Mayeli , Masaya Misaki , Jerzy Bodurka

The Fitzhugh-Nagumo neuronal model is used to explore the influence of the electric field on thermosensitive neurons' dynamics. This study investigates how the electric field affects polarization modulation in cell media induced by changes…

混沌动力学 · 物理学 2025-02-13 Ediline L. F. Nguessap , Fernando F. Ferreira , Antonio C. Roque

Background: Real-time functional magnetic resonance imaging neurofeedback (rtfMRI-nf) has proven to be a powerful technique to help subjects to gauge and enhance emotional control. Traditionally, rtfMRI-nf has focused on emotional…

We have compared measurements of a set of polyethylene terephthalate (PET) electret samples by means of pulsed electroacoustic method (PEA) and thermally stimulated depolarization current (TSDC) techniques. Experimental parameters such as…

材料科学 · 物理学 2022-03-09 S. E. Parsa , J. C. Cañadas , J. A. Diego , M. Mudarra , J. Sellarès

In this paper, electroencephalography (EEG) measurements are used to infer change in cortical functional connectivity in response to change in audio stimulus. Experiments are conducted wherein the EEG activity of human subjects is recorded…

信号处理 · 电气工程与系统科学 2018-02-20 Ketan Mehta , Joerg Kliewer

Static (DC) and dynamic (AC, at 14 MHz and 8 GHz) magnetic susceptibilities of single crystals of a ferromagnetic superconductor, $\textrm{EuFe}_{2}(\textrm{As}_{1-x}\textrm{P}_{x})_{2}$ (x = 0.23), were measured in pristine state and after…

Posttraumatic stress disorder (PTSD) is a chronic and disabling neuropsychiatric disorder characterized by insufficient top-down modulation of the amygdala activity by the prefrontal cortex. Real-time fMRI neurofeedback (rtfMRI-nf) is an…

神经元与认知 · 定量生物学 2018-04-13 Vadim Zotev , Raquel Phillips , Masaya Misaki , Chung Ki Wong , Brent E. Wurfel , Frank Krueger , Matthew Feldner , Jerzy Bodurka

Post-traumatic stress disorder (PTSD) is a mental disorder that can be developed after witnessing or experiencing extremely traumatic events. PTSD can affect anyone, regardless of ethnicity, or culture. An estimated one in every eleven…

声音 · 计算机科学 2024-03-29 Mamadou Dia , Ghazaleh Khodabandelou , Alice Othmani

Many studies have shown that the dorsolateral prefrontal cortex (DLPFC) plays an important role in top-down cognitive control over intentional and deliberate behavior. However, recent studies have reported that DLPFC-mediated top-down…

神经元与认知 · 定量生物学 2019-02-18 Mario Rosero Pahi , Juliana Cavalli , Frauke Nees , Herta Flor , Jamila Andoh

Metastable brain dynamics are characterized by abrupt, jump-like modulations so that the neural activity in single trials appears to unfold as a sequence of discrete, quasi-stationary states. Evidence that cortical neural activity unfolds…

神经元与认知 · 定量生物学 2019-06-20 Giancarlo La Camera , Alfredo Fontanini , Luca Mazzucato

This paper studies linear mathematical modeling of brain's cortical dynamics using electroencephalography (EEG) data in an experiment with continuous exogenous input. The EEG data were recorded while participants were seated with their…

神经元与认知 · 定量生物学 2025-10-06 Sanna Bakels , Mark van de Ruit , Matin Jafarian

Major Depressive Disorder (MDD) is a highly prevalent mental health condition, and a deeper understanding of its neurocognitive foundations is essential for identifying how core functions such as emotional and self-referential processing…

Objectives: Permissible limits have been established by international guidelines and standards for human protection to electromagnetic field exposure to prevent adverse health effects stemming from electrostimulation in the most sensitive…

医学物理 · 物理学 2025-02-12 Jose Gomez-Tames , Thomas Tarnaud , Wout Joseph , Emmeric Tanghe

Understanding the neural correlates of sensory imagery is crucial for advancing cognitive neuroscience and developing novel Brain-Computer Interface (BCI) paradigms. This study investigated the influence of imagined temperature sensations…

神经元与认知 · 定量生物学 2025-08-25 Anton Belichenko , Daria Trinitatova , Aigul Nasibullina , Lev Yakovlev , Dzmitry Tsetserukou

The need for automatic and high-quality emotion annotation is paramount in applications such as continuous emotion recognition and video highlight detection, yet achieving this through manual human annotations is challenging. Inspired by…

信号处理 · 电气工程与系统科学 2025-09-19 Guandong Pan , Zhaobang Wu , Yaqian Yang , Xin Wang , Longzhao Liu , Zhiming Zheng , Shaoting Tang

Objective: To establish the performance of several drive and measurement patterns in EIT imaging of neural activity in peripheral nerve, which involves large impedance change in the nerve's anisotropic length axis. Approach: Eight drive and…

神经元与认知 · 定量生物学 2019-01-09 J. Hope , F. Vanholsbeeck , A. McDaid

Electroencephalogram (EEG) is a very promising and widely implemented procedure to study brain signals and activities by amplifying and measuring the post-synaptical potential arising from electrical impulses produced by neurons and…

神经元与认知 · 定量生物学 2023-04-05 Subhrangshu Adhikary , Kushal Jain , Biswajit Saha , Deepraj Chowdhury