Carotid Baroreceptor Stimulation by Neck Suction during FMRI Investigation: Methodological Issues

Calcagnini, Giovanni ;   Mattei, Eugenio ;   Bozzali, Marco ;   Triventi, Michele ;   Mancini, Matteo ;   Censi, Federica ;   Barbieri, Riccardo

Tags Brain physiology and modelingBrain functional imaging – fMRI

Non-invasive stimulation of carotid baroreceptor using neck suction has been used to investigate the autonomic nervous system. fMRI allows…

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Causal Brain Correlates of Autonomic Nervous System Outflow

Duggento, Andrea ;   Bianciardi, Marta ;   Wald, Lawrence L. ;   Passamonti, Luca ;   Guerrisi, Maria ;   Barbieri, Riccardo ;   Toschi, Nicola

Tags Brain functional imaging – fMRIBrain functional imaging – Connectivity and information flowBrain physiology and modeling

We use 7T fMRI with simultaneous physiological signals acquisitions to investigate the causal interactions between resting state brain activity…

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Characterization of Fear Conditioning and Fear Extinction by Analysis of Electrodermal Activity

Faghih, Rose T. ;   Stokes, Patrick ;   Marin, Marie-France ;   Zsido, Rachel ;   Zorowitz, Sam ;   Rosenbaum, Blake ;   Song, Huijin ;   Milad, Mohammed ;   Dougherty, Darin ;   Eskandar, Emad ;   Widge, Alik ;   Brown, Emery N ;   Barbieri, Riccardo

Tags Brain physiology and modeling – Cognition, memory, perceptionNeurological disorders – Psychiatric disordersHuman performance – Cognition

Electrodermal activity (EDA) is a measure of physical arousal, which is frequently measured during psychophysical tasks relevant for anxiety…

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Combining Sudomotor Nerve Impulse Estimation with FMRI to Investigate the Central Sympathetic Response to Nausea

Sclocco, Roberta ;   Citi, Luca ;   Garcia, Ronald ;   Cerutti, Sergio ;   Bianchi, Anna Maria ;   Kuo, Braden ;   Napadow, Vitaly ;   Barbieri, Riccardo

Tags Brain physiology and modelingBrain functional imaging – fMRIBrain functional imaging – Spatial-temporal dynamics

The skin conductance (SC) signal is one of the most important non-invasive indirect measures of autonomic outflow. Several mathematical…

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EEG-Based Index for Engagement Level Monitoring during Sustained Attention

Coelli, Stefania ;   Sclocco, Roberta ;   Barbieri, Riccardo ;   Reni, Gianluigi ;   Zucca, Claudio ;   Bianchi, Anna Maria

Tags Signal processing in physiological systemsNonstationary processing of biomedical signals

This paper investigates the relation between mental engagement level and sustained attention in 9 healthy adults performing a Conners’…

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Estimating a Dynamic State to Relate Neural Spiking Activity to Behavioral Signals during Cognitive Tasks

Deng, Xinyi ;   Faghih, Rose T. ;   Barbieri, Riccardo ;   Paulk, Angelique C ;   Asaad, Wael F. ;   Brown, Emery N ;   Dougherty, Darin ;   Widge, Alik ;   Eskandar, Emad ;   Eden, Uri

Tags Brain physiology and modeling – Neural dynamics and computationHuman performance – CognitionRehabilitation – Cognition

An important question in neuroscience is understanding the relationship between high-dimensional electrophysiological data and complex, dynamic…

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Globally Conditioned Causality in Estimating Directed Brain-Heart Interactions through Joint MRI and RR Series Analysis

Duggento, Andrea ;   Bianciardi, Marta ;   Wald, Lawrence L. ;   Passamonti, Luca ;   Guerrisi, Maria ;   Barbieri, Riccardo ;   Toschi, Nicola

Tags CausalityMultivariate signal processingSignal processing in physiological systems

We used 7T fMRI with simultaneous physiological signals acquisitions to investigate the causal interactions from resting state brain activity to…

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Instantaneous Transfer Entropy for the Study of Cardio-Respiratory Dynamics

Valenza, Gaetano ;   Faes, Luca ;   Citi, Luca ;   Orini, Michele ;   Barbieri, Riccardo

Tags Nonlinear dynamics in biomedical signalsMultivariate signal processingNonlinear coupling of biomedical signals

Measures of transfer entropy have been proposed to quantify the directional coupling and strength between two complex physiological…

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Investigating Autonomic Correlates of Continuous Pain in the Brainstem through High-Field FMRI

Sclocco, Roberta ;   Beissner, Florian ;   Polimeni, Jonathan ;   Desbordes, Gaelle ;   Wald, Lawrence L. ;   Cerutti, Sergio ;   Bianchi, Anna Maria ;   Barbieri, Riccardo ;   Napadow, Vitaly

Tags Brain functional imaging – fMRIBrain physiology and modelingBrain functional imaging – Spatial-temporal dynamics

The brainstem is a fundamental brain structure that includes afferent and efferent pathways and regulatory nuclei. However, it is still poorly…

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Neuroimaging Nausea to Better Understand Central Autonomic Network Physiology – A Multi-Modal Approach

Napadow, Vitaly ;   Sclocco, Roberta ;   Kim, Jieun ;   Kuo, Braden ;   Barbieri, Riccardo

Tags Human performance – Vestibular functionsBrain functional imaging – fMRIBrain functional imaging – Connectivity and information flow

Nausea is an aversive sensation and a symptom of many gastrointestinal and non-gastrointestinal disorders. Nausea is associated with robust…

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Point-Process High-Resolution Representations of Heartbeat Dynamics for Multiscale Analysis: A CHF Survivor Prediction Study

Valenza, Gaetano ;   Wendt, Herwig ;   Kiyono, Ken ;   Hayano, Junichiro ;   Watanabe, Eiichi ;   Yamamoto, Yoshiharu ;   Abry, Patrice ;   Barbieri, Riccardo

Tags Time-scale and waveletsNonlinear dynamics in biomedical signalsSignal processing in physiological systems

Multiscale analysis of human heartbeat dynamics has been proved effective in characterizeing cardiovascular control physiology in health and…

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Revealing Brain Correlates of Autonomic Modulation by Combining Point Process Models of Heartbeat Dynamics with FMRI

Barbieri, Riccardo ;   Sclocco, Roberta ;   Napadow, Vitaly

Tags Brain physiology and modelingBrain functional imaging – fMRIBrain functional imaging – Spatial-temporal dynamics

Autonomic nervous system (ANS) responses to internal and external stimuli have been investigated by multiple studies. However, the brain…

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Uncovering Statistical Features of Bradycardia Severity in Premature Infants using a Point Process Model

Gee, Alan ;   Barbieri, Riccardo ;   Paydarfar, David ;   Indic, Premananda

Tags Signal processing in physiological systemsBiomedical signal classification

Premature infants are susceptible to a variety of life-threatening events. Underdeveloped cardiovascular control due to an immature…

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