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How to measure local active information storage in neural systems 如何测量神经系统的局部活动信息存储
2014 8th Conference of the European Study Group on Cardiovascular Oscillations (ESGCO) Pub Date : 2014-05-25 DOI: 10.1109/ESGCO.2014.6847554
M. Wibral, J. Lizier, V. Priesemann
{"title":"How to measure local active information storage in neural systems","authors":"M. Wibral, J. Lizier, V. Priesemann","doi":"10.1109/ESGCO.2014.6847554","DOIUrl":"https://doi.org/10.1109/ESGCO.2014.6847554","url":null,"abstract":"Any act of information processing can be decomposed into the component operations of transfer, storage and modification, and neural information processing is no exception. Here, we review two recent attempts to quantify active information storage carried by neural signals, and suggest an optimal experimental strategy to measure the active information storage as seen by other neurons or brain areas.","PeriodicalId":385389,"journal":{"name":"2014 8th Conference of the European Study Group on Cardiovascular Oscillations (ESGCO)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124365561","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Age-dependent changes in the manifestations of gender-related differences in the cardiovascular regulation 年龄依赖性变化表现为心血管调节的性别相关差异
2014 8th Conference of the European Study Group on Cardiovascular Oscillations (ESGCO) Pub Date : 2014-05-25 DOI: 10.1109/ESGCO.2014.6847562
Andreas Mueller, H. Bonnemeier, H. Malberg, J. Kurths, N. Wessel
{"title":"Age-dependent changes in the manifestations of gender-related differences in the cardiovascular regulation","authors":"Andreas Mueller, H. Bonnemeier, H. Malberg, J. Kurths, N. Wessel","doi":"10.1109/ESGCO.2014.6847562","DOIUrl":"https://doi.org/10.1109/ESGCO.2014.6847562","url":null,"abstract":"Previous studies analyzed the age-dependence of cardiovascular parameters in females and males. Their obtained results agree that the complexity of the studied signals as well as the differences between females and males decrease with increasing age. According to this study, we can confirm these findings. Additionally, by using nonlinear methods from the field of symbolic dynamics, we were able to detect significant differences between the female and male subjects of older age on the basis of the heart rate variability.","PeriodicalId":385389,"journal":{"name":"2014 8th Conference of the European Study Group on Cardiovascular Oscillations (ESGCO)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115859634","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Cardiac neural regulation involvement in patients with amyotrophic lateral sclerosis 肌萎缩侧索硬化患者心脏神经调节的参与
2014 8th Conference of the European Study Group on Cardiovascular Oscillations (ESGCO) Pub Date : 2014-05-25 DOI: 10.1109/ESGCO.2014.6847539
L. D. Dalla Vecchia, A. Lucini, Domenico Volza, Riccardo Sideri, Kalliopi Marinou, G. Mora
{"title":"Cardiac neural regulation involvement in patients with amyotrophic lateral sclerosis","authors":"L. D. Dalla Vecchia, A. Lucini, Domenico Volza, Riccardo Sideri, Kalliopi Marinou, G. Mora","doi":"10.1109/ESGCO.2014.6847539","DOIUrl":"https://doi.org/10.1109/ESGCO.2014.6847539","url":null,"abstract":"Amyotrophic Lateral Sclerosis (ALS) is a neurodegenerative disease characterized by motor and extra-motor neuron loss. Aim of this study was to attempt a better characterization of the cardiac neural regulation in ALS using the heart rate variability analysis. Cardiac neural regulation was altered in all patients, i.e. they showed a low RR variance and an abnormal response to orthostasis. Interestingly, at rest patients could be divided in those with lower and those with higher sympathetic activity than normal. In both cases the response to orthostasis was blunted. These findings suggest that an impairment of the autonomic nervous system is present in ALS with different patterns of cardiac regulation imbalance among patients. It has to be established if such differences depend upon time course of the disease, different clinical entities, or other anatomic, pathological and clinical variables.","PeriodicalId":385389,"journal":{"name":"2014 8th Conference of the European Study Group on Cardiovascular Oscillations (ESGCO)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114724632","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Prediction of response to noxious stimulation during sedation-analgesia by refined multiscale entropy analysis of EEG 精细多尺度熵分析预测镇静镇痛过程中对有害刺激的反应
2014 8th Conference of the European Study Group on Cardiovascular Oscillations (ESGCO) Pub Date : 2014-05-25 DOI: 10.1109/ESGCO.2014.6847519
J. Valencia, U. Melia, M. Vallverdú, M. Jospin, E. Jensen, A. Porta, P. Gambús, P. Caminal
{"title":"Prediction of response to noxious stimulation during sedation-analgesia by refined multiscale entropy analysis of EEG","authors":"J. Valencia, U. Melia, M. Vallverdú, M. Jospin, E. Jensen, A. Porta, P. Gambús, P. Caminal","doi":"10.1109/ESGCO.2014.6847519","DOIUrl":"https://doi.org/10.1109/ESGCO.2014.6847519","url":null,"abstract":"The level of sedation in patients undergoing medical procedures evolves continuously since the effect of the anesthetic and analgesic agents is counteracted by noxious stimuli. The monitors of depth of anesthesia, based on the analysis of the electroencephalogram (EEG), have been progressively introduced into the daily practice to provide additional information about the state of the patient. However, the quantification of analgesia still remains an open problem. The purpose of this work was to analyze the capability of prediction of nociceptive responses based on refined multiscale entropy (RMSE). Functions based on RMSE and CeRemi permitted to predict different stimulation responses during sedation with better prediction probability than bispectral index.","PeriodicalId":385389,"journal":{"name":"2014 8th Conference of the European Study Group on Cardiovascular Oscillations (ESGCO)","volume":"4 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123806664","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Heart rate variability as a proxy for fetal programming: The effect of maternal exercise 心率变异性作为胎儿编程的代理:母亲运动的影响
2014 8th Conference of the European Study Group on Cardiovascular Oscillations (ESGCO) Pub Date : 2014-05-25 DOI: 10.1109/ESGCO.2014.6847505
K. Gustafson, L. May, John J. B. Allen
{"title":"Heart rate variability as a proxy for fetal programming: The effect of maternal exercise","authors":"K. Gustafson, L. May, John J. B. Allen","doi":"10.1109/ESGCO.2014.6847505","DOIUrl":"https://doi.org/10.1109/ESGCO.2014.6847505","url":null,"abstract":"Our research aim was twofold; a) to determine if maternal physical activity during pregnancy would influence the development of fetal cardiac autonomic control and b) whether HRV could serve as a sensitive indicator of fetal programming effects. Pregnant women with singleton pregnancies participated in a longitudinal study. Magnetocardiograms (MCG) were recorded during pregnancy and when infants reached 1 month of age. Metrics of heart rate (HR) and variability (HRV) were calculated from the R-R intervals. Fetal HR was lower and HRV higher in the Exercise group and this effect persisted into the infant period. We conclude that maternal physical activity can influence the development of fetal cardiac autonomic control and this may give offspring an adaptive advantage.","PeriodicalId":385389,"journal":{"name":"2014 8th Conference of the European Study Group on Cardiovascular Oscillations (ESGCO)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123874165","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Changes in ventricular repolarization and cardiac function induced by head-down bed rest 头向下卧床对心室复极和心功能的影响
2014 8th Conference of the European Study Group on Cardiovascular Oscillations (ESGCO) Pub Date : 2014-05-25 DOI: 10.1109/ESGCO.2014.6847607
Enrico G. Caiani, A. Pellegrini, P. Massabuau, Pablo Laguna, Roberto M. Lang, P. Vaida
{"title":"Changes in ventricular repolarization and cardiac function induced by head-down bed rest","authors":"Enrico G. Caiani, A. Pellegrini, P. Massabuau, Pablo Laguna, Roberto M. Lang, P. Vaida","doi":"10.1109/ESGCO.2014.6847607","DOIUrl":"https://doi.org/10.1109/ESGCO.2014.6847607","url":null,"abstract":"Reports of ventricular arrhythmias during spaceflights raise the question of whether microgravity increases sudden cardiac death risk. To test if changes in cardiac structure and neurohumoral environment during space flight could alter electrical conduction, we studied both changes in ventricular repolarization (VR) and cardiac echocardiographic parameters in 12 males before and after five days of head-down (-6°) sedentary bed-rest (HDBR), simulating exposure to microgravity. Increased heterogeneity in VR was found, but not related to cardiac atrophy. In fact, changes in LV morphology were restored 3 days after HDBR. Longer HDBR studies are needed to better elucidate the phenomenon.","PeriodicalId":385389,"journal":{"name":"2014 8th Conference of the European Study Group on Cardiovascular Oscillations (ESGCO)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124733893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Investigating cardiovascular and cerebrovascular variability in postural syncope by means of extended Granger causality 运用扩展格兰杰因果关系研究体位性晕厥的心脑血管变异性
2014 8th Conference of the European Study Group on Cardiovascular Oscillations (ESGCO) Pub Date : 2014-05-25 DOI: 10.1109/ESGCO.2014.6847510
L. Schiatti, G. Nollo, G. Rossato, L. Faes
{"title":"Investigating cardiovascular and cerebrovascular variability in postural syncope by means of extended Granger causality","authors":"L. Schiatti, G. Nollo, G. Rossato, L. Faes","doi":"10.1109/ESGCO.2014.6847510","DOIUrl":"https://doi.org/10.1109/ESGCO.2014.6847510","url":null,"abstract":"The patterns of Granger causality (GC) between heart period (HP), mean arterial pressure (AP) and cerebral blood flow velocity (FV) were investigated in ten subjects with postural related syncope (PRS). The classic GC measure based on vector autoregressive (VAR) modeling was compared with a novel extended GC (eGC) measure derived from VAR models incorporating instantaneous causal effects among the series. The analysis was performed in the supine and in the upright position during early (ET) and late (LT, close to presyncope) epochs of head-up tilt. Moving from ET to LT, both GC and eGC decreased from AP to HP, and increased from AP to FV, reflecting baroreflex impairment and loss of cerebral autoregulation. The statistical significance of these changes was better assessed using the eGC, thus suggesting the importance of including instantaneous effects in the causality analysis of cardiovascular and cerebrovascular variability during PRS.","PeriodicalId":385389,"journal":{"name":"2014 8th Conference of the European Study Group on Cardiovascular Oscillations (ESGCO)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116332648","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Respiration in cardiovascular regulation models: Signal or confounding factor? A review 心血管调节模型中的呼吸作用:信号还是混杂因素?回顾
2014 8th Conference of the European Study Group on Cardiovascular Oscillations (ESGCO) Pub Date : 2014-05-25 DOI: 10.1109/ESGCO.2014.6847606
G. Baselli, F. Aletti, M. Ferrario
{"title":"Respiration in cardiovascular regulation models: Signal or confounding factor? A review","authors":"G. Baselli, F. Aletti, M. Ferrario","doi":"10.1109/ESGCO.2014.6847606","DOIUrl":"https://doi.org/10.1109/ESGCO.2014.6847606","url":null,"abstract":"The coupling of breathing and cardiovascular (CV) regulation is a main source of spontaneous short term CV variability signals. However, intense interaction with short term regulations involving baroreflex, vasomotion, and central drives and the ubiquitous presence of respiratory driven/modulated responses may render it a potent confounding factor, when not properly described. Major challenges are found in the acute clinical environment, e.g. ICU and OR, where monitoring cardiorespiratory coupling and CV regulation is of high impact, while sedation and forced ventilation extensively change the reflex portrait. A review is here attempted, finalized to approach ICU recordings in the ShockOmics EC project, aimed at integrating biomolecular and CV data in acute shock, under diffuse receptor cleavage and autonomic impairment.","PeriodicalId":385389,"journal":{"name":"2014 8th Conference of the European Study Group on Cardiovascular Oscillations (ESGCO)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116472281","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Review of some new methods for analyzing vital heart signals 心脏重要信号分析新方法综述
2014 8th Conference of the European Study Group on Cardiovascular Oscillations (ESGCO) Pub Date : 2014-05-25 DOI: 10.1109/ESGCO.2014.6847512
I. Reljin, A. Gavrovska, M. Paskas
{"title":"Review of some new methods for analyzing vital heart signals","authors":"I. Reljin, A. Gavrovska, M. Paskas","doi":"10.1109/ESGCO.2014.6847512","DOIUrl":"https://doi.org/10.1109/ESGCO.2014.6847512","url":null,"abstract":"Phono- and echocardiogram signals play significant role in describing heart state. In our research we derived and proposed several linear and nonlinear methods for analyzing such signals. Some of our results are described.","PeriodicalId":385389,"journal":{"name":"2014 8th Conference of the European Study Group on Cardiovascular Oscillations (ESGCO)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122734849","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Cardiovascular autonomic control and its relationship with the quality of life in patients with fibromyalgia: Preliminary study 纤维肌痛患者心血管自主控制及其与生活质量的关系:初步研究
2014 8th Conference of the European Study Group on Cardiovascular Oscillations (ESGCO) Pub Date : 2014-05-25 DOI: 10.1109/ESGCO.2014.6847555
A. R. Zámuner, C. Andrade, M. Forti, P. Driusso, A. Catai, R. Furlan, Ester da Silva
{"title":"Cardiovascular autonomic control and its relationship with the quality of life in patients with fibromyalgia: Preliminary study","authors":"A. R. Zámuner, C. Andrade, M. Forti, P. Driusso, A. Catai, R. Furlan, Ester da Silva","doi":"10.1109/ESGCO.2014.6847555","DOIUrl":"https://doi.org/10.1109/ESGCO.2014.6847555","url":null,"abstract":"This study aimed to evaluate the cardiovascular autonomic control and its relationship with the quality of life in fibromyalgia (FM). Seven women with FM and 10 healthy women (CG) were studied. The ECG and blood pressure were continuously recorded in supine and during active standing (AST). Spectral analysis provided the indices of cardiac sympathovagal modulation (LFRR and LFRR/HFRR) and sympathetic vasomotor control (LFsap). Coherence between RR and SAP variability [(K2SAP-RR(LF)] and baroreflex function (index-αLF) were quantified. Quality of life was assessed by FIQ questionnaire. In supine, FM presented higher values of sympathetic cardiovascular modulation and lower baroreflex function compared to CG, and a tendency towards an inverse relationship between FIQ and K2SAP-RR(LF) (RS=-0.5;p=0.2). During AST, FM showed a reduced capability to increase cardiovascular sympathetic modulation compared to CG. FM presented abnormal cardiovascular autonomic profile and the reduced coherence may be related to a worst quality of life.","PeriodicalId":385389,"journal":{"name":"2014 8th Conference of the European Study Group on Cardiovascular Oscillations (ESGCO)","volume":"24 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126058264","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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