Results 11 to 20 of about 11,468 (258)
Partially Coherent Direct Sum Channels [PDF]
Quantum, 2021 We introduce Partially Coherent Direct Sum (PCDS) quantum channels, as a generalization of the already known Direct Sum quantum channels. We derive necessary and sufficient conditions to identify the subset of those maps which are degradable, and provide a simplified expression for their quantum capacities.
Stefano Chessa, Vittorio Giovannetti
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EEG effective connectivity networks for an attentive task requiring vigilance based on dynamic partial directed coherence [PDF]
Journal of Integrative Neuroscience, 2020 An effective network perspective focused on measuring directional interactions of electroencephalographic in different cortical regions during a sustained attentive task requiring vigilance.
Songyun Xie, Yabing Li
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Frequency Domain Repercussions of Instantaneous Granger Causality
Entropy, 2021 Using directed transfer function (DTF) and partial directed coherence (PDC) in the information version, this paper extends the theoretical framework to incorporate the instantaneous Granger causality (iGC) frequency domain description into a single ...
Luiz A. Baccalá, Koichi Sameshima
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Lack of redundancy between electrophysiological measures of long-range neuronal communication
BMC Biology, 2021 Background Communication between brain areas has been implicated in a wide range of cognitive and emotive functions and is impaired in numerous mental disorders.
Daniel Strahnen +3 more
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NeuroImage, 2022 Fundamental to elucidating the functional organization of the brain is the assessment of causal interactions between different brain regions. Multivariate autoregressive (MVAR) modeling techniques applied to multisite electrophysiological recordings are ...
Christopher M. Endemann +4 more
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Frontiers in Physiology, 2022 Brain plasticity and functional reorganization are mechanisms behind functional motor recovery of patients after an ischemic stroke. The study of resting-state motor network functional connectivity by means of EEG proved to be useful in investigating ...
Ileana Pirovano +7 more
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Inferring directed climatic interactions with renormalized partial directed coherence and directed partial correlation [PDF]
Chaos: An Interdisciplinary Journal of Nonlinear Science, 2017 Inferring interactions between processes promises deeper insight into mechanisms underlying network phenomena. Renormalised partial directed coherence is a frequency-domain representation of the concept of Granger causality, while directed partial correlation is an alternative approach for quantifying Granger causality in the time domain.
Tirabassi, Giulio +2 more
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Partial directed coherence: twenty years on some history and an appraisal [PDF]
Biological Cybernetics, 2021 Here while we reminisce about how partial directed coherence was proposed, its motivation and evolution, we take the opportunity to relate it to some of its kin quantities and some of its offspring. Emphasis is placed on our development of asymptotic criteria to place it as a reliable investigation tool, where the connectivity detection problem is ...
Luiz A. Baccalá, Koichi Sameshima
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Improving EEG-Based Driver Distraction Classification Using Brain Connectivity Estimators
Sensors, 2022 This paper discusses a novel approach to an EEG (electroencephalogram)-based driver distraction classification by using brain connectivity estimators as features.
Dulan Perera +4 more
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Mental Stress Management Using fNIRS Directed Connectivity and Audio Stimulation
IEEE Transactions on Neural Systems and Rehabilitation Engineering, 2023 In this study, we propose a method to enhance cognitive vigilance and mitigate mental stress in the workplace. We designed an experiment to induce stress by putting participants through Stroop Color-Word Task (SCWT) under time constraint and negative ...
Rateb Katmah +5 more
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