Information transfer through the spontaneous baroreflex in healthy humans.
Methods Inf Med
; 49(5): 506-10, 2010.
Article
en En
| MEDLINE
| ID: mdl-20490425
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.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Fotopletismografía
/
Barorreflejo
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Electrocardiografía
Límite:
Adult
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Female
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Humans
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Male
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Middle aged
Idioma:
En
Revista:
Methods Inf Med
Año:
2010
Tipo del documento:
Article
País de afiliación:
Italia
Pais de publicación:
Alemania