Functional near-infrared spectroscopy: a continuous wave type based system for human frontal lobe studies

Authors

  • Sigita Venclove Department of Neurobiology and Biophysics, Faculty of Natural Sciences, Vilnius University, Ciurlionio 21/27, LT-03101 Vilnius, Lithuania
  • Algis Daktariunas Department of Neurobiology and Biophysics, Faculty of Natural Sciences, Vilnius University, Ciurlionio 21/27, LT-03101 Vilnius, Lithuania
  • Osvaldas Ruksenas Department of Neurobiology and Biophysics, Faculty of Natural Sciences, Vilnius University, Ciurlionio 21/27, LT-03101 Vilnius, Lithuania

DOI:

https://doi.org/10.17179/excli2015-614

Keywords:

functional near-infrared spectroscopy, non-invasive, hemodynamic response, cortical activation, prototype

Abstract

Functional Near-Infrared Spectroscopy (fNIRS) is an optical non-invasive brain monitoring technology that registers changes in hemodynamic responses within the cortex of the human brain. Over the last decades fNIRS became a promising method in neurosciences: it is non-invasive, portable and can be used in long term studies. All these advantages make it suitable for educational purposes as well. This paper presents basic methodological concept of optical engineering principles and suitable applications of fNIRS. We represent a continuous wave (cw-fNIRS) system that could be used for frontal lobe studies in human adults or as demonstration equipment for physiological measurements. This system has been validated by comparing it with commercial device fNIR400 from Biopac. A comparison of geometry, data and statistical analyses suggests similar hemodynamic responses recorded by both devices. Our study suggests that this system can be used for further development and as a guideline for researchers to develop a specific tool for applications in human brain studies.

Published

2015-10-23

How to Cite

Venclove, S., Daktariunas, A., & Ruksenas, O. (2015). Functional near-infrared spectroscopy: a continuous wave type based system for human frontal lobe studies. EXCLI Journal, 14, 1145–1152. https://doi.org/10.17179/excli2015-614

Issue

Section

Original articles