S. Akselrod

Publications191
h-index38
Citations11,818
Highly Influential Citations540
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Power spectrum analysis of heart rate fluctuation: a quantitative probe of beat-to-beat cardiovascular control.
Power spectrum analysis of heart rate fluctuations provides a quantitative noninvasive means of assessing the functioning of the short-term cardiovascular control systems. We show that sympathetic… Expand
  • 4,813
  • 281
Hemodynamic regulation: investigation by spectral analysis.
We investigated the hypothesis that beat-to-beat variability in hemodynamic parameters reflects the dynamic interplay between ongoing perturbations to circulatory function and the compensatory… Expand
  • 1,319
  • 54
  • PDF
An Efficient Algorithm for Spectral Analysis of Heart Rate Variability
TLDR
We present a simple efficient algorithm for the derivation of a heart rate signal from the electrocardiogram that more closely matches that of the input signal to an integral pulse frequency modulation (IPFM) model. Expand
  • 841
  • 23
An estimate of fetal autonomic state by time-frequency analysis of fetal heart rate variability.
In this study we present a noninvasive method that enables the investigation of the fetal heart rate (FHR) fluctuations. The objective was to design a quantitative measurement to assess the fetal… Expand
  • 118
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  • PDF
Passive or Active Immunization with Myelin Basic Protein Promotes Recovery from Spinal Cord Contusion
Partial injury to the spinal cord can propagate itself, sometimes leading to paralysis attributable to degeneration of initially undamaged neurons. We demonstrated recently that autoimmune T cells… Expand
  • 353
  • 11
  • PDF
Fluctuations in autonomic nervous activity during sleep displayed by power spectrum analysis of heart rate variability
Objective The use of an efficient noninvasive method to investigate the autonomic nervous system and cardiovascular control during sleep. Background Beat-to-beat heart rate variability displays two… Expand
  • 247
  • 11
Spectral analysis of fluctuations in cardiovascular parameters: a quantitative tool for the investigation of autonomic control.
  • S. Akselrod
  • Medicine
  • Trends in pharmacological sciences
  • 1988
  • 147
  • 9
Diffusion anisotropy MRI for quantitative assessment of recovery in injured rat spinal cord
Spinal cord injury and its devastating consequences are the subject of intensive research aimed at reversing or at least minimizing functional loss. Research efforts focus on either attenuating the… Expand
  • 136
  • 9
  • PDF
Individual time-dependent spectral boundaries for improved accuracy in time-frequency analysis of heart rate variability
TLDR
We developed an algorithm for the detection of individual time-dependent spectral boundaries (ITSB) in the time-frequency decomposition of HR, BP and other cardiovascular signals. Expand
  • 52
  • 9
Selective discrete Fourier transform algorithm for time-frequency analysis: method and application on simulated and cardiovascular signals
TLDR
The Selective Discrete Fourier transform (DFT) Algorithm [SDA] method for the calculation and display of time-frequency distribution has been developed for the evaluation and quantification of the control exerted by the Central Nervous System, during clinical and experimental procedures resulting in nonstationary signals. Expand
  • 159
  • 8