Special Section on Clinical Near-Infrared Spectroscopy and Imaging

Short-term pulse rate variability is better characterized by functional near-infrared spectroscopy than by photoplethysmography

[+] Author Affiliations
Lisa Holper, Erich Seifritz

University of Zurich, Department of Psychiatry, Psychotherapy, and Psychosomatics, Hospital of Psychiatry, Lenggstrasse 31, 8032 Zurich, Switzerland

Felix Scholkmann

University Hospital Zurich, University of Zurich, Biomedical Optics Research Laboratory, Department of Neonatology, Frauenklinikstrasse 10, 8091 Zurich, Switzerland

J. Biomed. Opt. 21(9), 091308 (May 17, 2016). doi:10.1117/1.JBO.21.9.091308
History: Received January 22, 2016; Accepted April 18, 2016
Text Size: A A A

Abstract.  Pulse rate variability (PRV) can be extracted from functional near-infrared spectroscopy (fNIRS) (PRVNIRS) and photoplethysmography (PPG) (PRVPPG) signals. The present study compared the accuracy of simultaneously acquired PRVNIRS and PRVPPG, and evaluated their different characterizations of the sympathetic (SNS) and parasympathetic (PSNS) autonomous nervous system activity. Ten healthy subjects were recorded during resting-state (RS) and respiratory challenges in two temperature conditions, i.e., room temperature (23°C) and cold temperature (4°C). PRVNIRS was recorded based on fNIRS measurement on the head, whereas PRVPPG was determined based on PPG measured at the finger. Accuracy between PRVNIRS and PRVPPG, as assessed by cross-covariance and cross-sample entropy, demonstrated a high degree of correlation (r>0.9), which was significantly reduced by respiration and cold temperature. Characterization of SNS and PSNS using frequency-domain, time-domain, and nonlinear methods showed that PRVNIRS provided significantly better information on increasing PSNS activity in response to respiration and cold temperature than PRVPPG. The findings show that PRVNIRS may outperform PRVPPG under conditions in which respiration and temperature changes are present, and may, therefore, be advantageous in research and clinical settings, especially if characterization of the autonomous nervous system is desired.

Figures in this Article
© 2016 Society of Photo-Optical Instrumentation Engineers

Citation

Lisa Holper ; Erich Seifritz and Felix Scholkmann
"Short-term pulse rate variability is better characterized by functional near-infrared spectroscopy than by photoplethysmography", J. Biomed. Opt. 21(9), 091308 (May 17, 2016). ; http://dx.doi.org/10.1117/1.JBO.21.9.091308


Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

PubMed Articles
Advertisement


 

  • Don't have an account?
  • Subscribe to the SPIE Digital Library
  • Create a FREE account to sign up for Digital Library content alerts and gain access to institutional subscriptions remotely.
Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).
Access This Proceeding
Sign in or Create a personal account to Buy this article ($15 for members, $18 for non-members).
Access This Chapter

Access to SPIE eBooks is limited to subscribing institutions and is not available as part of a personal subscription. Print or electronic versions of individual SPIE books may be purchased via SPIE.org.