Auto-regressive Spectral Analysis of RR-Interval Time Series in Healthy Fetus and Newborn Infants

—Continuity of autonomic nervous system function from prenatal to postnatal life—
  • Teruyuki Ogawa
Part of the Statistics for Engineering and Physical Science book series (ISS)


A fetus’s heart rate variation is regulated by the heart rate control center existing in the brainstem, and its rhythmic movement is a sharp information reflecting the ever-changing autonomic nervous activity state (for example, antagonistic regulation of vagus nerves and sympathetic nerves). However, no report describing the continuity of the sway of the heart rate variation ranging from a fetus to a newborn infant has been available until now. With such a situation in mind, analysis is made in this chapter with the maturity process of the autonomic nervous activity ranging from a human fetus to a newborn infant by applying an auto-regressive model. Thus, studies have been carried out with the purpose of estimating the physiological significance lurking in the background of the above process.


Newborn Infant Fetal Heart Rate Parasympathetic Nervous System Heart Rate Variation Fetal Lamb 
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Copyright information

© Springer-Verlag New York, Inc. 1999

Authors and Affiliations

  • Teruyuki Ogawa
    • 1
  1. 1.School of MedicineOita Medical UniversityOitaJapan

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