Autonomic nervous system

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The autonomic nervous system (ANS or visceral nervous system) is the part of the peripheral nervous system that acts as a control system functioning largely below the level of consciousness, and controls visceral functions. (Wikipedia.org)






Conferences related to Autonomic nervous system

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2020 42nd Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC)

The conference program will consist of plenary lectures, symposia, workshops and invitedsessions of the latest significant findings and developments in all the major fields of biomedical engineering.Submitted papers will be peer reviewed. Accepted high quality papers will be presented in oral and postersessions, will appear in the Conference Proceedings and will be indexed in PubMed/MEDLINE


2020 IEEE International Conference on Systems, Man, and Cybernetics (SMC)

The 2020 IEEE International Conference on Systems, Man, and Cybernetics (SMC 2020) will be held in Metro Toronto Convention Centre (MTCC), Toronto, Ontario, Canada. SMC 2020 is the flagship conference of the IEEE Systems, Man, and Cybernetics Society. It provides an international forum for researchers and practitioners to report most recent innovations and developments, summarize state-of-the-art, and exchange ideas and advances in all aspects of systems science and engineering, human machine systems, and cybernetics. Advances in these fields have increasing importance in the creation of intelligent environments involving technologies interacting with humans to provide an enriching experience and thereby improve quality of life. Papers related to the conference theme are solicited, including theories, methodologies, and emerging applications. Contributions to theory and practice, including but not limited to the following technical areas, are invited.


2020 IEEE/SICE International Symposium on System Integration (SII)

IEEE/SICE SII is the premier symposium series presenting the state of the art and future perspectives of System integration, where industry experts, researchers, and academics share ideas and experiences surrounding frontier technologies, breakthrough and innovative solutions and applications.2020 IEEE/SICE International Symposium on System Integrations (SII 2020) will be as the 12th symposium on system integration. System integration is one of the key technologies and the integration of hardware and software is especially important to solve the industrial or social system problems in new century. This symposium focuses to the new research and industrial application of system integration, and discusses the approach method to improve effectiveness of system integration.

  • 2019 IEEE/SICE International Symposium on System Integration (SII)

    IEEE/SICE SII is the premier symposium series presenting the state of the art and future perspectives of System integration, where industry experts, researchers, and academics share ideas and experiences surrounding frontier technologies, breakthrough and innovative solutions and applications.

  • 2017 IEEE/SICE International Symposium on System Integration (SII)

    System Integration,Control technology, Robotics technology, Network system control, Plant engineering, System hardware, System software, Integration platform, Artifacts, Mechatronics systems, Automation systems, Virtual reality systems, Entertainment systems, Micro-nano systems,Human and Society, Welfare/Environment / Ecological systems, Bio systems, Rescue/Security/Enterprise resource planning systems, Supply chain management/Intelligent transportation/Logistics systems, Human, Aging society, Health engineering, Assistive Technologies, Large-scale system simulation, Software/Networking systems, Decision making, Human-Robot cooperation/interaction

  • 2016 IEEE/SICE International Symposium on System Integration (SII)

    The topics of this symposium include, but not limited to1. System IntegrationControl technology, Robotics technology, Network system control, Plant engineering, System hardware, System software, Integration platform2. ArtifactsMechatronics systems, Automation systems, Virtual reality systems, Entertainment systems, Micro-nano systems3. Human and SocietyWelfare systems, Environment/Ecological systems, Bio systems, Rescue systems, Security systems, Enterprise resource planning systems, Supply chain management systems, Intelligent transportation systems, Logistics systems, Human, Aging Society, Health engineering4. Assistive TechnologiesLarge-scale system simulation, Software systems, Networking systems, Decision making systems

  • 2015 IEEE/SICE International Symposium on System Integration (SII)

    The topics of this symposium include, but nou limited to 1. System Integration Control technology, Robotics technology, Network system control, Plant engineerint, System hardware, System Software Integration platform, ... 2. Artifacts Mechatronics systems, Automation systems, Virtual reality systems, Entertainment systems, Micro-nano systems, ... 3. Human and Society Welfare systems, Environment/Ecological systems, Bio systems, Rescue systems, Security systems, Enterprise resource planning systems, Supply chain management systems, Intelligent transportation systems, Logistics systems, Human, Aging Society, Health engineering... 4. Assistive Technologies Large-scale system simulation, Software systems, Networking systems, Decision making systems, ...

  • 2014 IEEE/SICE International Symposium on System Integration (SII)

    The topics of this symposium include, but not limited to1. System IntegrationControl technology, Robotics technology, Network system control, Plant engineering, Systemhardware, System software, Integration platform,...2. ArtifactsMechatronics systems, Automation systems, Virtual reality systems, Entertainment systems,Micro-nano systems, ...3. Human and SocietyWelfare systems, Environment / Ecological systems, Bio systems, Rescue systems, Securitysystems, Enterprise resource planning systems, Supply chain management systems, Intelligent transportation systems, Logistics systems, Human, Aging Society, Health engineering...4. Assistive TechnologiesLarge-scale system simulation, Software systems, Networking systems, Decision makingsystems, ...

  • 2013 IEEE/SICE International Symposium on System Integration (SII)

    The topics of this symposium include, but not limited to 1. System IntegrationControl technology, Robotics technology, Network system control, Plant engineering, System hardware, System software, Integration platform,...2. ArtifactsMechatronics systems, Automation systems, Virtual reality systems, Entertainment systems, Micro-nano systems, ... 3. Human and SocietyWelfare systems, Environment / Ecological systems, Bio systems, Rescue systems, Security systems, Enterprise resource planning systems, Supply chain management systems, Intelligent transportation systems, Logistics systems, Human, Aging Society, Health engineering... 4. Assistive TechnologiesLarge-scale system simulation, Software systems, Networking systems, Decision making systems, ...

  • 2012 IEEE/SICE International Symposium on System Integration (SII 2012)

    System integration is one of the key technologies and the integration of hardware and software is especially important to solve the industrial or social system problems. This conference focuses to the new research and industrial application of system integration, and discusses the approach method to improve effectiveness of system integration.

  • 2011 IEEE/SICE International Symposium on System Integration (SII 2011)

    System integration is one of the key technologies and the integration of hardware and software is especially important to solve the industrial or social system problems in new century. This conference focuses to the new research and industrial application of system integration, and discusses the approach method to improve effectiveness of system integration.

  • 2010 IEEE/SICE International Symposium on System Integration (SII 2010)

    System integration is one of the key technologies and the integration of hardware and software is especially important to solve the industrial or social system problems in the new century. The symposium focuses on new researches and industrial applications of system integration.

  • 2009 IEEE/SICE International Symposium on System Integration (SII 2009)

    System integration is one of the key technologies and the integration of hardware and software is especially important to solve the industrial or social system problems in the new century. The symposium focuses on new researches and industrial applications of system integration.

  • 2008 IEEE/SICE International Symposium on System Integration (SI International 2008)

    System integration is an important key issue in the recent trend of technology which gives objective-oriented solutions to vairous problems. The symposium focuses on principles and practices of future system integration on the basis of fact cases.


2019 IEEE 6th Portuguese Meeting on Bioengineering (ENBENG)

IEEE EMBS Portugal Chapter organized event for promotion of subjects and projects that involve research and industry in the following areas: Biomedical Imaging and Image Processing, Instrumentation and Biomedical Signal Processing, Modeling Physiological Systems, Biomechanics,Neuroengineering and Neurosciences, Rehabilitation Engineering, Medical Robotics and Human-Machine Interfaces, Stem Cell Biology and Regenerative Medicine, Biomaterials and Tissue Engineering, Bioinfoirmatics and Systems Biology, Biomolecular, Biocelular and Bioprocess Engineering, Health Informatics and Telemedicine, Medical Equipment Management, Werable Biomedical Sensors and Systems, Bioengineering Education and Society, Biophysics,Micro and Nano Bioengineering.

  • 2017 IEEE 5th Portuguese Meeting on Bioengineering (ENBENG)

    IEEE EMBS Chapter for Portugal organized event for the promotion of subjects and projects that involve Portuguese research and industry in the following areas: Biomedical Imaging and Image Processing, Biomedical Signal Processing, Stem Cell Biology and Regenerative Medicine, Biomolecular and Bioprocess Engineering, Biomaterials, Micro- and Nano-bioengineering, Cellular and Tissue Engineering, Medical and Bio-Robotics, Surgical Planning and Biomechanics, Therapeutic and Diagnostic Systems, Devices and Technologies, Clinical Engineering, Neural Engineering, Neuromuscular Systems and Rehabilitation Engineering, Cardiovascular & Respiratory Systems Engineering, Wearable Biomedical Sensors and Systems, Computational Systems and Synthetic Biology; Modeling of Physiological Systems, Multiscale Modeling, Biomedical and Health Informatics, Domicile Autonomy Assistance and Ambient Assisted Living, Biomedical Engineering Education and Society, Healthcare Decisions Support

  • 2015 IEEE 4th Portuguese Meeting on Bioengineering (ENBENG)

    Organised by the IEEE EMBS Chapter for Portugal, the event includes: presentation of academic papers developed by researchers, students and industry; exhibition of entrepreneurship cases in Portugal; analysis of the bioengineering field in the Portuguese/Iberian/European context. The scope of this edition consists in the promotion of subjects and projects that involve Portuguese key bodies and affiliated researchers and enterprise in the following areas: Biomaterials, Nanobiotechnology, Tissue Engineering; Biology of Stem Cells and Regenerative Medicine; Bioprocess Engineering, Bioinformatics Engineering and Biomolecular Engineering; Biomechanics and Computational Biology; Biomedical Signal Processing; Radiology and Biomedical Imaging, Image Processing; Bioinstrumentation, Biosensors and Neuroengineering; Medical Robotics and Human-Machine Interface; Clinical Informatics; Modeling of Physiological Systems; Domicile autonomy assistance; and Education in Bioengineering

  • 2013 IEEE 3rd Portuguese Meeting in Bioengineering (ENBENG)

    The scope of this edition consists in the promotion of subjects and projects that involve Portuguese key bodies and affiliated researchers and enterprise in the following areas: Biomaterials, Nanobiotechnology and Tissue Engineering Stem Cell Biology and Regenerative Medicine Biomolecular and Bioprocess Engineering Biomechanics and Computational Biology System Biology, Genomics, Proteomics and other Omics Biomedical Imaging and Diagnostic Imaging Bioinstrumentation, Biosensors, Biometry and Neuroengineering

  • 2012 IEEE 2nd Portuguese Meeting in Bioengineering (ENBENG)

    The following topics are dealt with in the fields of Bioengineering, biomedical engineering and biotechnology in Portugal.

  • 2011 IEEE 1st Portuguese Meeting in Bioengineering - The Challenge of the XXI Century (ENBENG)

    From the joint will of people and entities of the academic, associative, industrial, medical and student bodies spew the initiative to cater a meeting that could reunite them all every year throughout the Portuguese territory. The theme in this first initiative is Bioengineering and Medical Sciences, the challenge of the XXI century , which sets the motto for a sustained and transversal development in an emerging Engineering subject which we believe will become the recipient of some of Men s highest achie


2019 IEEE AUTOTESTCON

AUTOTESTCON is the world’s premier conference that brings together themilitary/aerospace automatic test industry and government/military acquirers and usersto share new technologies, discuss innovative applications, and exhibit products andservices.

  • 2018 IEEE AUTOTESTCON

    AUTOTESTCON is the world’s premier conference that brings together the military/aerospace automatic test industry and government/military acquirers and users to share new technologies, discuss innovative applications, and exhibit products and services

  • 2017 IEEE AUTOTESTCON

    IEEE AUTOTESTCON is also known as the Systems Readiness Technology Conference. This major conference and exposition provides focus on the maintenance aspects of systems readiness and providing Mission Assurance through Advanced ATE (Automatic Test Equpmenrt/Systems). This includes Maintenance Repair & Overhaul as well as factory and development automated test equipment. This conference brings military and aerospace industry principals together to share new concepts, technologies and applications in this essential field of supportability and sustainability. The conference includes a major exhibit of exciting new products from a wide variety of exhibitors, and provides the opportunity to meet with senior military and aerospace leaders to discuss their future needs and expectations and the ways in which we can satisfy those needs.

  • 2016 IEEE AUTOTESTCON

    echnical Interchange Meeting for military/aerospace automatic test industry together to share new technologies, discuss innovative applications, and exhibit products and services

  • 2015 IEEE AUTOTESTCON

    IEEE AUTOTEST is an annual Technical Interchange Meeting sponsored by the Institute of Electrical and Electronic Engineers (IEEE). This event serves to gather the military/aerospace automatic test industry together to share new technologies, discuss innovative applications, and exhibit products and services

  • 2014 IEEE AUTOTEST

    IEEE AUTOTESTCON is the world s only conference that focuses primarily on Automated Test and related technology for military, government and aerospace applications. The conference also has an expanded focus into commercial areas that share a common technical base, including aerospace, vehicle and automotive, and commercial factory test applications. Autotestcon provides a unique opportunity to discuss platform support requirements with all DoD Branches, provides hands-on experience with test equipment, and

  • 2013 IEEE AUTOTESTCON

    Content focused on automatic test systems for US military systems.

  • 2012 IEEE AUTOTESTCON

    Automated Test Systems (ATE) and related technologies such as Test Program Sets for US military and defense equipment

  • 2011 IEEE AUTOTESTCON

    Annual conference of the automatic testing industry.

  • 2010 IEEE AUTOTESTCON

    IEEE AUTOTESTCON, The Support Systems Technology Conference, is the largest conference focused on automatic test systems for military and aerospace systems, and has been held annually since 1965. It features more than 120 quality application-focused papers and 250 Exhibits. Attendance ranges between 650 and 750 registered professionals.

  • 2009 IEEE AUTOTESTCON

    Automated Test, Test Technology, and related Support Systems for Defense Systems.

  • 2008 IEEE AUTOTESTCON

    All theoretical and application aspects for an appropriate topic dealing with system readiness, in general, and automatic test technology, in particular. In keeping with our conference theme "Surpassing the Limits-Forging Ahead" our focus will be on new ideas and concepts, unusual testing solutions, and future technologies, e.g. ATE Architectures, Artificial Intelligence in Test, ATE/TPS Development Techniques, ATE/TPS Management, BIT/BIST

  • 2007 IEEE AUTOTESTCON

  • 2006 IEEE AUTOTESTCON

  • 2005 IEEE AUTOTESTCON

  • 2004 IEEE AUTOTESTCON

  • 2003 IEEE AUTOTESTCON

  • 2002 IEEE AUTOTESTCON

  • 2001 IEEE AUTOTESTCON

  • 2000 IEEE AUTOTESTCON

  • AUTOTESTCON '99

  • AUTOTESTCON '98

  • AUTOTESTCON '97

  • AUTOTESTCON '96


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Periodicals related to Autonomic nervous system

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Biomedical Engineering, IEEE Transactions on

Broad coverage of concepts and methods of the physical and engineering sciences applied in biology and medicine, ranging from formalized mathematical theory through experimental science and technological development to practical clinical applications.


Engineering in Medicine and Biology Magazine, IEEE

Both general and technical articles on current technologies and methods used in biomedical and clinical engineering; societal implications of medical technologies; current news items; book reviews; patent descriptions; and correspondence. Special interest departments, students, law, clinical engineering, ethics, new products, society news, historical features and government.


Fuzzy Systems, IEEE Transactions on

Theory and application of fuzzy systems with emphasis on engineering systems and scientific applications. (6) (IEEE Guide for Authors) Representative applications areas include:fuzzy estimation, prediction and control; approximate reasoning; intelligent systems design; machine learning; image processing and machine vision;pattern recognition, fuzzy neurocomputing; electronic and photonic implementation; medical computing applications; robotics and motion control; constraint propagation and optimization; civil, chemical and ...


Information Technology in Biomedicine, IEEE Transactions on

Telemedicine, teleradiology, telepathology, telemonitoring, telediagnostics, 3D animations in health care, health information networks, clinical information systems, virtual reality applications in medicine, broadband technologies, and global information infrastructure design for health care.


Instrumentation & Measurement Magazine, IEEE

Applications-oriented material in the field of instrumentation and measurement.


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Most published Xplore authors for Autonomic nervous system

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Xplore Articles related to Autonomic nervous system

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A Novel PBPK/PD Model with Automatic Nervous System in Anesthesia

2005 IEEE Engineering in Medicine and Biology 27th Annual Conference, 2006

In terms of the characteristic of anesthetic operation, this paper propose new physiologically based pharmacokinetics/ pharmacodynamics (PBPK/PD) model that focus on the important role of autonomic nervous system (ANS) more. Automatic nervous system that is divided into the sympathetic nervous system and the parasympathetic nervous system, at the same time, is the important target of drug effect in anesthesia. Consequently, ...


Non-linear Analysis of Cardiac Autonomic Nervous Activity using Principal Dynamic Fluctuation Analysis

2005 Annual IEEE India Conference - Indicon, 2005

Heart Rate Variability (HRV) is a marker of sympathovagal balance of Autonomous Nervous System (ANS). The homeostasis of the cardiovascular system is properly maintained by the efficient interaction of parasympathetic and sympathetic nervous systems. The efficiency of such interactions is understood from the computations of the ratio of the sympathetic to parasympathetic spectral powers. This paper introduces a modified Principal ...


Evaluation of mental workload by fluctuation analysis of pupil area

Proceedings of the 20th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Vol.20 Biomedical Engineering Towards the Year 2000 and Beyond (Cat. No.98CH36286), 1998

It is generally known that the pupil is regulated by the autonomic nervous system. In this study, an attempt was made to assess mental workload on the basis of fluctuation rhythm of pupil area. Controlling the respiration interval, the pupil area during mental tasking was measured for 1 min. The respiration curve was measured simultaneously to monitor the respiration interval. ...


Heartscope: a software tool addressing autonomic nervous system regulat

Computers in Cardiology, 2005, 2005

The evaluation of cardiovascular control system requires ad-hoc software tools specifically designed to address the complexity of the regulation mechanisms in a multiparametric and multidisciplinary perspective. We introduce HeartScope a Windows-based C++ tool that brings together the most advanced signal processing methods for the analysis of cardiovascular regulation in a flexible and friendly framework


Storage of sparse-coded hetero-associations with the competitive synaptic growth network

[Proceedings 1992] IJCNN International Joint Conference on Neural Networks, 1992

The authors apply the competitive synaptic growth network (SGN) to the storage and recall of sparse coded binary heteroassociations. The SGN is a two-layer, feedforward neural network utilizing complex neurons having finite extent and active dendritic structures. The performance measure for the SGN is the number of connections needed to store noiseless sparse coded heteroassociations and perfectly recall these associations ...


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Educational Resources on Autonomic nervous system

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IEEE-USA E-Books

  • A Novel PBPK/PD Model with Automatic Nervous System in Anesthesia

    In terms of the characteristic of anesthetic operation, this paper propose new physiologically based pharmacokinetics/ pharmacodynamics (PBPK/PD) model that focus on the important role of autonomic nervous system (ANS) more. Automatic nervous system that is divided into the sympathetic nervous system and the parasympathetic nervous system, at the same time, is the important target of drug effect in anesthesia. Consequently, not only does the action levels of automatic nervous system indicator the anesthesia state, but feed back altering the physiological state parameters of pharmacokinetics, which being one crucial reason of time-variant and nonlinear drug effect. However, the recent PBPK modeling and simulation strategy only estimate specific absorption, distribution, metabolism and excretion (ADME) parameters but consider no modulation result of automatic nervous system any longer. So far, in order to avoid over-interpreted data from mathematical models and to take more consideration of clinical significance, the PBPK/PD model with automatic nervous system presented is helpful to make clearer relationship between PK and PD, that between sophisticated of model and real physiological phenomenon in anesthesia than before

  • Non-linear Analysis of Cardiac Autonomic Nervous Activity using Principal Dynamic Fluctuation Analysis

    Heart Rate Variability (HRV) is a marker of sympathovagal balance of Autonomous Nervous System (ANS). The homeostasis of the cardiovascular system is properly maintained by the efficient interaction of parasympathetic and sympathetic nervous systems. The efficiency of such interactions is understood from the computations of the ratio of the sympathetic to parasympathetic spectral powers. This paper introduces a modified Principal Dynamic fluctuation analysis (PDFA) using a non-linear kernel trick to estimate the dynamics of cardiac autonomic nervous systems activity from the heart rate variability. It is found that the wide range of beating ratio has better sympathovagal balance. A large LF/HF ratio suggests predominantly vagal conrol. Comparison of this method to the conventional linear methods shows PDFA provide more accurate assessment of the sympathovagal balance. We obtained consistent results in all of our signals, comprising of seven sudden death cardiac signals and five normal sinus rhythm signals.

  • Evaluation of mental workload by fluctuation analysis of pupil area

    It is generally known that the pupil is regulated by the autonomic nervous system. In this study, an attempt was made to assess mental workload on the basis of fluctuation rhythm of pupil area. Controlling the respiration interval, the pupil area during mental tasking was measured for 1 min. The respiration curve was measured simultaneously to monitor the respiration interval. Two mental tasks were used. One was a division task, the work level of which was set to two, three, four and five number of digits of the dividend. The other was a Sternberg memory search task, which had four work levels defined by the number of memory set. In the Sternberg memory search, the number of memory sets changed from five to eight. In such a way, the mental workload induced by mental loading was changed. As a result of calculating an AR power spectrum, we could observe two peaks which corresponded to the blood pressure variation and respiratory sinus arrhythmia under a low workload condition. With increasing workload, the spectral peak related to the respiratory sinus arrhythmia disappeared. The ratio of the power at the low frequency band (from 0.05-0.15 Hz) to the power at the respiration frequency band (from 0.35-0.4 Hz) increased with work level. In conclusion, the fluctuation of the pupil area can be used as a promising means to evaluate mental workload or autonomic function to supplement well-used heart rate variability measures.

  • Heartscope: a software tool addressing autonomic nervous system regulat

    The evaluation of cardiovascular control system requires ad-hoc software tools specifically designed to address the complexity of the regulation mechanisms in a multiparametric and multidisciplinary perspective. We introduce HeartScope a Windows-based C++ tool that brings together the most advanced signal processing methods for the analysis of cardiovascular regulation in a flexible and friendly framework

  • Storage of sparse-coded hetero-associations with the competitive synaptic growth network

    The authors apply the competitive synaptic growth network (SGN) to the storage and recall of sparse coded binary heteroassociations. The SGN is a two-layer, feedforward neural network utilizing complex neurons having finite extent and active dendritic structures. The performance measure for the SGN is the number of connections needed to store noiseless sparse coded heteroassociations and perfectly recall these associations when given a (perhaps noisy) input vector. Using the same number of network connections, the SGN clearly outperforms the benchmark nonholographic associative memory applied to the same problem.<<ETX>>

  • Elements of construction of expert system of the analysis of heart-rate variability based on principles of nonlinear dynamics

    In this article a concept of nonlinear analysis of heart-rate variability that may improve the understanding of the underlying physiological processes of the autonomic nervous system is introduced.

  • The pupil as a possible monitor of the autonomic nervous system

    The pupil is innervated by the autonomic nervous activity. With the easiness of observation, it has been utilized as a possible monitor of the autonomic nervous system activity. In this paper, two possible methods for evaluating the sympathetic and the parasympathetic nervous activity are proposed. One of them is an improved version of the conventional method which has been developed and used by neuro-ophthalmologists to diagnose the autonomic nervous diseases. The other one employs the inverse dynamic model of the pupil muscle system. Validity of each method is confirmed by the drug experiment or comparison with directly measured autonomic nervous system activity to the pupil. Finally, the result of an application of the new method is described.

  • Comparison of fMRI BOLD Effect and Arterial Pulsation Harmonic Distribution among Different Breathing Rate

    The phenomenon of respiratory sinus arrhythmia (RSA) had been studied since 1733. Most researches were focused on the heart rates or blood pressure variability. It was well known that heart rate variability (HRV) induced by respiration decreased progressively with age. In general, it is caused by the function of the autonomic nervous system (ANS). Seldom researches studied the relationship of this phenomenon with cerebral circulation. In our previous research, we found that different breathing rate could redistribute the proportion of systemic circulation, and also observed that the slower the breathing rate the more proportion of cerebral circulation appeared on head. In this paper, we further examined the BOLD (Blood Oxygenation Level Dependent) signal fluctuations in brain stem among different breathing rate by the technique of functional magnetic resonance imaging (fMRI). We found that the BOLD signal changes were hinged on the breathing rate, and the variability was consistent with the pulsatile pressure study.

  • Control of artificial hearts using autonomic nervous signals

    In order to develop an artificial heart system capable of being controlled by autonomic nervous signals, we have studied the methods of long-term stable recording of autonomic nervous signals and algorithms to utilize those signals to control an artificial heart system optimally. In this study, we have focused on the feasibility of the control of an artificial heart using the signals recorded from the cardiac sympathetic nerve and other nerves through animal experiments.

  • Central and autonomic regulation of fetal heart rate: nonlinear analysis after vibroacoustic stimulation

    Vibroacoustic stimulation is able to produce a fetal sensory response, which is mediated by the Central Nervous System (CNS). Despite the fetal heart rate variability is basically regulated by Autonomic Nervous System (ANS), some changes in the FHR appear as a direct consequence of the sensory stimulation. The paper proposes an analysis of FHR of 13 normal subjects based on nonlinear approaches. Detrended Fluctuation Analysis (DFA), Approximate Entropy and Poincare plots are able to evidence differences that can be attributed to fetal nervous system activity. In particular DFA decreases after stimulation confirming a reduction in the longterm correlation properties of FHR. The parallel, marked increase of ApEn indicates a regularity loss after the sensory stimuli. Nonlinear indexes seem able to describe complex interactions of different neural mechanisms which control the FHR.



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