Search results for "cardiorespiratory dynamics"

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Cardiorespiratory information dynamics during mental arithmetic and sustained attention

2015

An analysis of cardiorespiratory dynamics during mental arithmetic, which induces stress, and sustained attention was conducted using information theory. The information storage and internal information of heart rate variability (HRV) were determined respectively as the self-entropy of the tachogram, and the self-entropy of the tachogram conditioned to the knowledge of respiration. The information transfer and cross information from respiration to HRV were assessed as the transfer and cross-entropy, both measures of cardiorespiratory coupling. These information-theoretic measures identified significant nonlinearities in the cardiorespiratory time series. Additionally, it was shown that, alt…

Information TheoryBLOOD-PRESSUREAudiologyMedicine (all); Biochemistry Genetics and Molecular Biology (all); Agricultural and Biological Sciences (all)ElectrocardiographyMedicine and Health SciencesHeart rate variabilityANXIETYAttentionVagal tonemedia_commoninformation theoryMultidisciplinaryHEART-RATE-VARIABILITYSISTARespirationMedicine (all)QRENTROPYHeartSignal Processing Computer-AssistedMedicineAnxietymedicine.symptomVigilance (psychology)Research ArticleDECOMPOSITIONmedicine.medical_specialtyAdolescentSciencemedia_common.quotation_subjectINDEXESRESPIRATORY SINUS ARRHYTHMIAYoung AdultPSYCHOLOGICAL STRESSRespirationHeart rateWORK STRESSmedicineHumansPredictabilityBiochemistry Genetics and Molecular Biology (all)Cardiorespiratory fitnessREACTIVITYattentionNonlinear DynamicsAgricultural and Biological Sciences (all)Settore ING-INF/06 - Bioingegneria Elettronica E InformaticaMathematicsStress Psychologicalcardiorespiratory dynamics
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