Research Topics
| Riccardo BarbieriSummaryAffiliation: Harvard University Country: USA Publications
Research Grants
| Collaborators
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Detail Information
Publications
Application of dynamic point process models to cardiovascular controlRiccardo Barbieri
Department of Anesthesia and Critical Care, Massachusetts General Hospital, Harvard Medical School, Jackson 4, 55 Fruit Street, Boston, MA 02114, USA
Biosystems 93:120-5. 2008....
Correction of erroneous and ectopic beats using a point process adaptive algorithmRiccardo Barbieri
Dept of Anesthesia and Critical Care, Massachusetts Gen Hosp, Boston, MA 02114 2696, USA
Conf Proc IEEE Eng Med Biol Soc 1:3373-6. 2006..Results demonstrate the efficacy of the method, and show new heart rate and heart rate variability dynamics corrected for artifacts introduced by incorrect and/or irregular R-R intervals...- Analysis of heartbeat dynamics by point process adaptive filteringRiccardo Barbieri
Neuroscience Statistics Research Laboratory, Department of Anesthesia and Critical Care, Massachusetts General Hospital, Boston 02114 2696, USA
IEEE Trans Biomed Eng 53:4-12. 2006..Our results suggest a new approach for characterizing heartbeat dynamics... - An analysis of hippocampal spatio-temporal representations using a Bayesian algorithm for neural spike train decodingRiccardo Barbieri
Neuroscience Statistics Research Laboratory, Department of Anesthesia and Critical Care, Massachusetts General Hospital, Boston, MA 02114 2696, USA
IEEE Trans Neural Syst Rehabil Eng 13:131-6. 2005..95 confidence regions was 0.71. These results illustrate how the Bayesian neural spike train decoding paradigm may be used to investigate spatio-temporal representations of position by an ensemble of hippocampal neurons... - A point-process model of human heartbeat intervals: new definitions of heart rate and heart rate variabilityRiccardo Barbieri
Neuroscience Statistics Research Laboratory, Department of Anesthesia and Critical Care, Massachusetts General Hospital, 55 Fruit St, Clinics 3, Boston, MA 02114 2696, USA
Am J Physiol Heart Circ Physiol 288:H424-35. 2005.... - Dynamic analyses of information encoding in neural ensemblesRiccardo Barbieri
Neuroscience Statistics Research Laboratory, Department of Anesthesia and Critical Care, Massachusetts General Hospital Harvard Medical School, Boston, MA 02114, USA
Neural Comput 16:277-307. 2004..These findings improve significantly on our previous results and suggest an integrated approach to dynamically reading neural codes, measuring their properties, and quantifying the accuracy with which encoded information is extracted... - Construction of point process adaptive filter algorithms for neural systems using sequential Monte Carlo methodsAyla Ergun
Neuroscience Statistics Research Laboratory, Department of Anesthesia and Critical Care, Massachusetts General Hospital, Boston, MA 02114 2698, USA
IEEE Trans Biomed Eng 54:419-28. 2007..Our results suggest an approach for constructing point process adaptive filters using SMC methods... - Statistical inference for assessing functional connectivity of neuronal ensembles with sparse spiking dataZhe Chen
Neuroscience Statistics Research Laboratory, Massachusetts General Hospital, Harvard Medical School, Boston, 02114, USA
IEEE Trans Neural Syst Rehabil Eng 19:121-35. 2011..The identification of spiking dependencies in physiologically acquired data was encouraging, since their sparse nature would have previously precluded them from successful analysis using traditional methods... - Assessment of hippocampal and autonomic neural activity by point process modelsRiccardo Barbieri
Neuroscience Statistics Research Laboratory, Dept of Anesthesia and Critical Care, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
Conf Proc IEEE Eng Med Biol Soc 2008:3679. 2008..The first studies how hippocampal neural activity represents and transmits information, whereas the second is aimed at characterizing activity of the central autonomic network as involved in cardiovascular control... - Characterizing nonlinear heartbeat dynamics within a point process frameworkZhe Chen
Neuroscience Statistics Research Laboratory, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
Conf Proc IEEE Eng Med Biol Soc 2008:2781-4. 2008..The proposed probabilistic model was examined with two recorded heartbeat interval data sets. Preliminary results show that our model is beneficial to characterize the inherent nonlinearity of the heartbeat dynamics... - Assessment of autonomic control and respiratory sinus arrhythmia using point process models of human heart beat dynamicsZhe Chen
Neuroscience Statistics Research Laboratory, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
IEEE Trans Biomed Eng 56:1791-802. 2009..Our paradigm suggests a possible framework for designing a device for ambulatory monitoring and assessment of autonomic control in both laboratory research and clinical practice... - Discrete- and continuous-time probabilistic models and algorithms for inferring neuronal UP and DOWN statesZhe Chen
Neuroscience Statistics Research Laboratory, Department of Anesthesia and Critical Care, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
Neural Comput 21:1797-862. 2009..Our approach provides a statistical characterization of UP-DOWN state dynamics that can serve as a basis for verifying and refining mechanistic descriptions of this process... - Characterizing nonlinear heartbeat dynamics within a point process frameworkZhe Chen
Neuroscience Statistics Research Laboratory, Harvard Medical School, Massachusetts General Hospital, Boston, MA 02114, USA
IEEE Trans Biomed Eng 57:1335-47. 2010..In comparison to other nonlinear modeling approaches, the point process probability model is useful in revealing nonlinear heartbeat dynamics at a fine timescale and with only short duration recordings... - A differential autoregressive modeling approach within a point process framework for non-stationary heartbeat intervals analysisZhe Chen
Neuroscience Statistics Research Laboratory, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
Conf Proc IEEE Eng Med Biol Soc 2010:3567-70. 2010..Results further demonstrate the ability of the method to appropriately quantify the non-stationary evolution of baroreflex sensitivity in changing physiological and pharmacological conditions... - Dynamic assessment of baroreflex control of heart rate during induction of propofol anesthesia using a point process methodZhe Chen
Neuroscience Statistics Research Laboratory, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
Ann Biomed Eng 39:260-76. 2011.... - Instantaneous assessment of autonomic cardiovascular control during general anesthesiaZhe Chen
Neuroscience Statistics Research Laboratory, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
Conf Proc IEEE Eng Med Biol Soc 2011:8444-7. 2011.... - Dynamic analysis of neural encoding by point process adaptive filteringUri T Eden
Department of Anesthesia and Critical Care, Massachusetts General Hospital, Boston, and Division of Health Sciences and Technology, Harvard Medical School Massachusetts Institute of Technology, Cambridge, MA, USA
Neural Comput 16:971-98. 2004..Our results provide a paradigm for adaptive estimation for point process observations and suggest a practical approach for constructing filtering algorithms to track neural receptive field dynamics on a millisecond timescale... - Point-process analysis of neural spiking activity of muscle spindles recorded from thin-film longitudinal intrafascicular electrodesLuca Citi
Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital Harvard Medical School, Boston, MA 02114, USA
Conf Proc IEEE Eng Med Biol Soc 2011:2311-4. 2011..This important result is a first step towards a point process decoding algorithm to estimate the muscle length and possibly provide closed loop Functional Electrical Stimulation (FES) systems with natural sensory feedback information... - Static and dynamic autonomic response with increasing nausea perceptionLauren T LaCount
Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, 149 Thirteenth St, 2301, Charlestown, MA 02129, USA
Aviat Space Environ Med 82:424-33. 2011..Nausea is a commonly occurring symptom typified by epigastric discomfort with urge to vomit. The relationship between autonomic nervous system (ANS) outflow and increasing nausea perception is not fully understood... - Linear and nonlinear quantification of respiratory sinus arrhythmia during propofol general anesthesiaZhe Chen
Neuroscience Statistics Research Laboratory, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
Conf Proc IEEE Eng Med Biol Soc 2009:5336-9. 2009..Our proposed statistical indices provide a valuable quantitative assessment of instantaneous cardiorespiratory control and heart rate variability (HRV) during general anesthesia... - Instantaneous monitoring of sleep fragmentation by point process heart rate variability and respiratory dynamicsLuca Citi
Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital Harvard Medical School, Boston, MA, USA
Conf Proc IEEE Eng Med Biol Soc 2011:7735-8. 2011..An automatic threshold-based procedure is further able to detect brief arousals, with the instantaneous indices characterizing specific arousal dynamic signatures... - The time-rescaling theorem and its application to neural spike train data analysisEmery N Brown
Neuroscience Statistics Research Laboratory, Department of Anesthesia and Critical Care, Massachusetts General Hospital, Boston, MA 02114, USA
Neural Comput 14:325-46. 2002..Our paradigm makes it possible to compare parametric and histogram-based neural spike train models directly. These results suggest that the time-rescaling theorem can be a valuable tool for neural spike train data analysis... - A unified point process probabilistic framework to assess heartbeat dynamics and autonomic cardiovascular controlZhe Chen
Neuroscience Statistics Research Lab, Massachusetts General Hospital, Harvard Medical School Boston, MA, USA
Front Physiol 3:4. 2012..We also discuss the limitations and other alternative modeling strategies of our point process approach... - A regularized point process generalized linear model for assessing the functional connectivity in the cat motor cortexZhe Chen
Neuroscience Statistics Research Laboratory, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
Conf Proc IEEE Eng Med Biol Soc 2009:5006-9. 2009..The point process model was applied to an ensemble of neurons recorded from the cat motor cortex during a skilled reaching task. The implications of this analysis to the coding of skilled movement in primary motor cortex is discussed... - Assessment of cardio-respiratory interactions in preterm infants by bivariate autoregressive modeling and surrogate data analysisPremananda Indic
Department of Anesthesia and Critical Care, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
Early Hum Dev 87:477-87. 2011.... - A real-time automated point-process method for the detection and correction of erroneous and ectopic heartbeatsLuca Citi
Department of Anesthesia, Massachusetts General Hospital Harvard Medical School, Boston, MA 02115, USA
IEEE Trans Biomed Eng 59:2828-37. 2012.... - Brain correlates of autonomic modulation: combining heart rate variability with fMRIVitaly Napadow
MGH MIT HMS Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Charlestown, MA 02119, USA
Neuroimage 42:169-77. 2008..Our approach should be optimized and applied to study the human brain correlates of autonomic modulation for various stimuli in both physiological and pathological states... - A point process approach for analyzing gait variability dynamicsRobert J Ellis
Music, Stroke Recovery, and Neuroimaging Laboratory in the Department of Neurology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA 02215, USA
Conf Proc IEEE Eng Med Biol Soc 2011:1648-51. 2011..These results indicate the validity of a point process approach to the analysis of gait, and the potential utility of incorporating instantaneous measures of gait into diagnostic or patient monitoring applications... 
Enhanced vagal withdrawal during mild orthostatic stress in adolescents with chronic fatigueVegard Bruun Wyller
Department of Pediatrics, Rikshospitalet Radiumhospitalet Medical Center, Oslo, Norway
Ann Noninvasive Electrocardiol 13:67-73. 2008..The aim of this study was to investigate autonomic heart rate control during mild orthostatic stress in adolescents with CFS...- Heart rate control and mechanical cardiopulmonary coupling to assess central volume: a systems analysisRiccardo Barbieri
Department of Pediatrics, Medical University of South Carolina, Charleston, South Carolina 29425, USA
Am J Physiol Regul Integr Comp Physiol 283:R1210-20. 2002..The results identify the presence of a Bainbridge reflex in humans and suggest that short-term cardiovascular control is optimized at mild hypervolemia... - Automatic quantitative evaluation of emotions in E-learning applicationsStefano Scotti
Bioengineering Department, Polytechnic University, Milan, Italy
Conf Proc IEEE Eng Med Biol Soc 1:1359-62. 2006.... - Autonomic heart rate control at rest and during unloading of the right ventricle in repaired tetralogy of Fallot in adolescentsVegard Bruun Wyller
Division of Pediatrics, Rikshospitalet University Hospital, Oslo, Norway
Am J Cardiol 102:1085-9. 2008..During unloading of the right ventricle, however, vagal heart rate control increases in the patients with ToF and decreases in the controls...
Research Grants
- Point Process Models of Human Heart Beat Interval DynamicsRiccardo Barbieri; Fiscal Year: 2007..The health implications of this project are a more accurate characterization of cardiovascular control in research and clinical studies of both normal and pathological conditions. ..