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Journal Article
G. Valenza, Citi, L., and Barbieri, R., Estimation of Instantaneous Complex Dynamics through Lyapunov Exponents: A Study on Heartbeat Dynamics, PLoS One, vol. 9, no. 8, p. e105622, 2014.
G. Valenza, Citi, L., Scilingo, E. P., and Barbieri, R., Inhomogeneous point-process entropy: An instantaneous measure of complexity in discrete systems, Physical Review E, vol. 89, 2014. PDF icon 2014_valenza_et_al_pre_ipapen2.pdf (1.21 MB)
G. Valenza, Greco, A., Citi, L., Bianchi, M., Barbieri, R., and Scilingo, E. P., Inhomogeneous point-processes to instantaneously assess affective haptic perception through heartbeat dynamics information, Scientific reports, vol. 6, 2016.
G. Valenza, Akeju, O., Pavone, K. J., Citi, L., Hartnack, K. E., Sampson, A., Purdon, P. L., Brown, E. N., and Barbieri, R., Instantaneous monitoring of heart beat dynamics during anesthesia and sedation, Journal of Computational Surgery, vol. 3, no. 13, 2014. PDF icon 2014_valenza_et_al_jcompsur_anesthesia.pdf (2.51 MB)
G. Valenza, Faes, L., Citi, L., Orini, M., and Barbieri, R., Instantaneous transfer entropy for the study of cardiovascular and cardiorespiratory nonstationary dynamics, IEEE Transactions on Biomedical Engineering, vol. 65, pp. 1077–1085, 2017 [Online]. Available:
A. Greco, Faes, L., Catrambone, V., Barbieri, R., Scilingo, E. P., and Valenza, G., Lateralization of directional brain-heart information transfer during visual emotional elicitation, American Journal of Physiology-Regulatory, Integrative and Comparative Physiology, vol. 317, 2019 [Online]. Available:
G. Valenza, Citi, L., Saul, J. P., and Barbieri, R., Measures of sympathetic and parasympathetic autonomic outflow from heartbeat dynamics, Journal of applied physiology, vol. 125, pp. 19–39, 2018 [Online]. Available:
G. Valenza, Wendt, H., Kiyono, K., Hayano, J., Watanabe, E., Yamamoto, Y., Abry, P., and Barbieri, R., Mortality prediction in severe congestive heart failure patients with multifractal point-process modeling of heartbeat dynamics, IEEE Transactions on Biomedical Engineering, vol. 65, pp. 2345–2354, 2018 [Online]. Available:
A. Duggento, Passamonti, L., Valenza, G., Barbieri, R., Guerrisi, M., and Toschi, N., Multivariate Granger causality unveils directed parietal to prefrontal cortex connectivity during task-free MRI, Scientific reports, vol. 8, pp. 1–11, 2018 [Online]. Available:
G. Valenza, Garcia, R. G., Citi, L., Scilingo, E. P., Tomaz, C. A., and Barbieri, R., Nonlinear digital signal processing in mental health: characterization of major depression using instantaneous entropy measures of heartbeat dynamics, Frontiers in physiology, vol. 6, 2015.
A. Duggento, Valenza, G., Passamonti, L., Nigro, S., Bianco, M. G., Guerrisi, M., Barbieri, R., and Toschi, N., A parsimonious Granger causality formulation for capturing arbitrarily long multivariate associations, Entropy, vol. 21, p. 629, 2019 [Online]. Available:
G. Valenza, Citi, L., Gentili, C., Lanata, A., Scilingo, E. P., and Barbieri, R., Point-Process Nonlinear Autonomic Assessment of Depressive States in Bipolar Patients, Methods of Information in Medicine, vol. 53, no. 4, pp. 296–302, 2014.
G. Valenza, Citi, L., Scilingo, E. P., and Barbieri, R., Point-Process Nonlinear Models with Laguerre and Volterra Expansions: Instantaneous Assessment of Heartbeat Dynamics, IEEE Transactions on Signal Processing, vol. 61, no. 11, pp. 2914–2926, 2013.
R. G. Garcia, Valenza, G., Tomaz, C. A., and Barbieri, R., Relationship between cardiac vagal activity and mood congruent memory bias in major depression, Journal of Affective Disorders, vol. 190, pp. 19–25, 2016.
G. Valenza, Citi, L., Lanata, A., Scilingo, E. P., and Barbieri, R., Revealing Real-Time Emotional Responses: a Personalized Assessment based on Heartbeat Dynamics, Nature Scientific Reports, vol. 4, no. 4998, pp. 1–13, 2014.
M. Orini, Valenza, G., Citi, L., and Barbieri, R., Tetravariate Point-Process Model for the Continuous Characterization of Cardiovascular-Respiratory Dynamics during Passive Postural Changes, 2012.
G. Valenza, Passamonti, L., Duggento, A., Toschi, N., and Barbieri, R., Uncovering complex central autonomic networks at rest: a functional magnetic resonance imaging study on complex cardiovascular oscillations, Journal of the Royal Society Interface, vol. 17, p. 20190878, 2020 [Online]. Available: