Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Choosing an optimal wavelength to detect brain activity in functional near-infrared spectroscopy

Not Accessible

Your library or personal account may give you access

Abstract

Functional near-infrared spectroscopy (fNIRS) measures human brain function noninvasively. The optical response to oxy- and deoxy-hemoglobin concentration variations during brain activation is wavelength dependent because of the differing spectral shapes of the extinction coefficients of the two hemoglobin species. Choosing the optimal wavelength in fNIRS measurements is crucial to improving the performance of the technique. Here we report on a framework to estimate the spectral response to neural activation in a pre-defined local region. We found that the wavelength that exhibits the largest fractional change in the detected fluence with respect to the baseline value is around 830 nm.

© 2021 Optical Society of America

Full Article  |  PDF Article
More Like This
Approach to optimize 3-dimensional brain functional activation image with high resolution: a study on functional near-infrared spectroscopy

Zeshan Shoaib, M. Ahmad Kamran, M. M. N. Mannan, and Myung Yung Jeong
Biomed. Opt. Express 10(9) 4684-4710 (2019)

Functional near-infrared spectroscopy caps for brain activity monitoring: a review

Amal Kassab, Jérôme Le Lan, Phetsamone Vannasing, and Mohamad Sawan
Appl. Opt. 54(3) 576-586 (2015)

Bayesian filtering of human brain hemodynamic activity elicited by visual short-term maintenance recorded through functional near-infrared spectroscopy (fNIRS)

F. Scarpa, S. Cutini, P. Scatturin, R. Dell’Acqua, and G. Sparacino
Opt. Express 18(25) 26550-26568 (2010)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (5)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (1)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (7)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Metrics

Select as filters


Select Topics Cancel
© Copyright 2022 | Optica Publishing Group. All Rights Reserved