Information Transfer through the Spontaneous Baroreflex in Healthy Humans
Objectives: This study assesses the information transfer through the spontaneous baroreflex (i.e. through the pathway linking systolic arterial pressure to heart period) during an experimental condition soliciting baroreflex (i.e. head-up tilt). Methods: The information transfer was calculated as th...
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| Veröffentlicht in: | Methods of information in medicine 2010-01, Vol.49 (5), p.506-510 |
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| creator | Porta, A. Catai, A. M. Takahashi, A. C. M. Magagnin, V. Bassani, T. Tobaldini, E. Montano, N. |
| description | Objectives: This study assesses the information transfer through the spontaneous baroreflex (i.e. through the pathway linking systolic arterial pressure to heart period) during an experimental condition soliciting baroreflex (i.e. head-up tilt). Methods: The information transfer was calculated as the conditional entropy of heart period given systolic arterial pressure using a mutual neighbor approach and uniform quantization. The information transfer was monitored as a function of the forecasting time k. Results: We found that during head-up tilt the information transfer at k = 0 decreased but the rate of rise of information transfer as a function of k was faster. Conclusions: We suggest that the characterization of the information transfer from systolic arterial pressure to heart period might complement the traditional characterization of the spontaneous baroreflex based on transfer function analysis. |
| doi_str_mv | 10.3414/ME09-02-0036 |
| format | Article |
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M. ; Takahashi, A. C. M. ; Magagnin, V. ; Bassani, T. ; Tobaldini, E. ; Montano, N.</creator><creatorcontrib>Porta, A. ; Catai, A. M. ; Takahashi, A. C. M. ; Magagnin, V. ; Bassani, T. ; Tobaldini, E. ; Montano, N.</creatorcontrib><description>Objectives: This study assesses the information transfer through the spontaneous baroreflex (i.e. through the pathway linking systolic arterial pressure to heart period) during an experimental condition soliciting baroreflex (i.e. head-up tilt). Methods: The information transfer was calculated as the conditional entropy of heart period given systolic arterial pressure using a mutual neighbor approach and uniform quantization. The information transfer was monitored as a function of the forecasting time k. Results: We found that during head-up tilt the information transfer at k = 0 decreased but the rate of rise of information transfer as a function of k was faster. Conclusions: We suggest that the characterization of the information transfer from systolic arterial pressure to heart period might complement the traditional characterization of the spontaneous baroreflex based on transfer function analysis.</description><identifier>ISSN: 0026-1270</identifier><identifier>EISSN: 2511-705X</identifier><identifier>DOI: 10.3414/ME09-02-0036</identifier><identifier>PMID: 20490425</identifier><language>eng</language><publisher>Germany: Schattauer Verlag für Medizin und Naturwissenschaften</publisher><subject>Adult ; Autonomic Nervous System ; baroreflex ; Baroreflex - physiology ; cardiovascular control ; cross-conditional entropy ; Data Interpretation, Statistical ; Electrocardiography ; Entropy ; Female ; Humans ; Information transfer ; Male ; Middle Aged ; Original Articles ; Photoplethysmography ; Reference Values ; Signal Processing, Computer-Assisted ; Special Topic ; Systole - physiology ; Tilt-Table Test ; Young Adult</subject><ispartof>Methods of information in medicine, 2010-01, Vol.49 (5), p.506-510</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c781t-7f4dbf70e3ff07aa57647c04ebcf11563c11eea22ce4da13264dad5459aedb7f3</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Uhttp://www.schattauer.de/typo3temp/pics/cover-1125_cd8830bf2e.jpg</thumbnail><linktopdf>$$Uhttps://www.thieme-connect.de/products/ejournals/pdf/10.3414/ME09-02-0036.pdf$$EPDF$$P50$$Gthieme$$H</linktopdf><linktohtml>$$Uhttps://www.thieme-connect.de/products/ejournals/html/10.3414/ME09-02-0036$$EHTML$$P50$$Gthieme$$H</linktohtml><link.rule.ids>314,776,780,3004,27903,27904,54537,54538</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/20490425$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Porta, A.</creatorcontrib><creatorcontrib>Catai, A. M.</creatorcontrib><creatorcontrib>Takahashi, A. C. M.</creatorcontrib><creatorcontrib>Magagnin, V.</creatorcontrib><creatorcontrib>Bassani, T.</creatorcontrib><creatorcontrib>Tobaldini, E.</creatorcontrib><creatorcontrib>Montano, N.</creatorcontrib><title>Information Transfer through the Spontaneous Baroreflex in Healthy Humans</title><title>Methods of information in medicine</title><addtitle>Methods Inf Med</addtitle><description>Objectives: This study assesses the information transfer through the spontaneous baroreflex (i.e. through the pathway linking systolic arterial pressure to heart period) during an experimental condition soliciting baroreflex (i.e. head-up tilt). Methods: The information transfer was calculated as the conditional entropy of heart period given systolic arterial pressure using a mutual neighbor approach and uniform quantization. The information transfer was monitored as a function of the forecasting time k. Results: We found that during head-up tilt the information transfer at k = 0 decreased but the rate of rise of information transfer as a function of k was faster. Conclusions: We suggest that the characterization of the information transfer from systolic arterial pressure to heart period might complement the traditional characterization of the spontaneous baroreflex based on transfer function analysis.</description><subject>Adult</subject><subject>Autonomic Nervous System</subject><subject>baroreflex</subject><subject>Baroreflex - physiology</subject><subject>cardiovascular control</subject><subject>cross-conditional entropy</subject><subject>Data Interpretation, Statistical</subject><subject>Electrocardiography</subject><subject>Entropy</subject><subject>Female</subject><subject>Humans</subject><subject>Information transfer</subject><subject>Male</subject><subject>Middle Aged</subject><subject>Original Articles</subject><subject>Photoplethysmography</subject><subject>Reference Values</subject><subject>Signal Processing, Computer-Assisted</subject><subject>Special Topic</subject><subject>Systole - physiology</subject><subject>Tilt-Table Test</subject><subject>Young Adult</subject><issn>0026-1270</issn><issn>2511-705X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNrNkc9rFDEUxwdR7Fq9eZa5edDRl8yPzB5tqe5CxYMVvD2ymZdOykwyJhnX7n_iTfAfNcvWUhDPCoF3yCdfPu-bLHvK4FVZser1-zNYFsALgLK5ly14zVghoP58P1sA8KZgXMBR9iiEKwBoW6geZkccqiVUvF5k67XVzo8yGmfzCy9t0OTz2Hs3X_ZpUv5xcjZKS24O-Yn0zpMe6FtubL4iOcT-Ol_NY3r3OHug5RDoyc08zj69Pbs4XRXnH96tT9-cF0q0LBZCV91GC6BSaxBS1qKphIKKNkozVjelYoxIcq6o6iQreZNGV1f1UlK3Ebo8zp4fcifvvswUIo4mKBqGgyOKum1TMQ0k8uWBVN6FkLxx8maU_hoZ4L473HeHwHHfXcKf3QTPm5G6W_h3WQl4cQBib2gkvHKzt2nVv8X9ONBB9TJGOZO_jexjnHC73eKdu472Z5SXcmcs4Uwb8sGoPuKOTEygNzqSRYk7HCn2rguo0teQjQGlV735msqQtpO-QxPCTMgYr1OinYPyZorIShAtht5tk8E4JMXv_1oxTKSMHP6wTG4__1e3Ow3-AndxOFw</recordid><startdate>20100101</startdate><enddate>20100101</enddate><creator>Porta, A.</creator><creator>Catai, A. 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M. ; Magagnin, V. ; Bassani, T. ; Tobaldini, E. ; Montano, N.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c781t-7f4dbf70e3ff07aa57647c04ebcf11563c11eea22ce4da13264dad5459aedb7f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2010</creationdate><topic>Adult</topic><topic>Autonomic Nervous System</topic><topic>baroreflex</topic><topic>Baroreflex - physiology</topic><topic>cardiovascular control</topic><topic>cross-conditional entropy</topic><topic>Data Interpretation, Statistical</topic><topic>Electrocardiography</topic><topic>Entropy</topic><topic>Female</topic><topic>Humans</topic><topic>Information transfer</topic><topic>Male</topic><topic>Middle Aged</topic><topic>Original Articles</topic><topic>Photoplethysmography</topic><topic>Reference Values</topic><topic>Signal Processing, Computer-Assisted</topic><topic>Special Topic</topic><topic>Systole - physiology</topic><topic>Tilt-Table Test</topic><topic>Young Adult</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Porta, A.</creatorcontrib><creatorcontrib>Catai, A. M.</creatorcontrib><creatorcontrib>Takahashi, A. C. M.</creatorcontrib><creatorcontrib>Magagnin, V.</creatorcontrib><creatorcontrib>Bassani, T.</creatorcontrib><creatorcontrib>Tobaldini, E.</creatorcontrib><creatorcontrib>Montano, N.</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Methods of information in medicine</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Porta, A.</au><au>Catai, A. M.</au><au>Takahashi, A. C. 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| ispartof | Methods of information in medicine, 2010-01, Vol.49 (5), p.506-510 |
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| source | MEDLINE; Thieme Connect Journals |
| subjects | Adult Autonomic Nervous System baroreflex Baroreflex - physiology cardiovascular control cross-conditional entropy Data Interpretation, Statistical Electrocardiography Entropy Female Humans Information transfer Male Middle Aged Original Articles Photoplethysmography Reference Values Signal Processing, Computer-Assisted Special Topic Systole - physiology Tilt-Table Test Young Adult |
| title | Information Transfer through the Spontaneous Baroreflex in Healthy Humans |
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