fNIRS Optodes’ Location Decider (fOLD): a toolbox for probe arrangement guided by brain regions-of-interest

The employment of functional near-infrared spectroscopy (fNIRS) as a method of brain imaging has increased over the last few years due to its portability, low-cost and robustness to subject movement. Experiments with fNIRS are designed in the face of a limited number of sources and detectors (optode...

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Bibliographic Details
Published inScientific reports Vol. 8; no. 1; pp. 3341 - 11
Main Authors Zimeo Morais, Guilherme Augusto, Balardin, Joana Bisol, Sato, João Ricardo
Format Journal Article
LanguageEnglish
Published London Nature Publishing Group UK 20.02.2018
Nature Publishing Group
Subjects
59/36
631/378/2649
639/624/1107/510
Brain
Brain - diagnostic imaging
Brain mapping
Cortex
Experimental design
Functional magnetic resonance imaging
Functional Neuroimaging - methods
Humanities and Social Sciences
I.R. radiation
Infrared spectroscopy
multidisciplinary
Neuroimaging
Optical Devices
Scalp
Science
Science (multidisciplinary)
Spectroscopy, Near-Infrared - methods
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Summary:The employment of functional near-infrared spectroscopy (fNIRS) as a method of brain imaging has increased over the last few years due to its portability, low-cost and robustness to subject movement. Experiments with fNIRS are designed in the face of a limited number of sources and detectors (optodes) to be positioned on selected portion(s) of the scalp. The optodes locations represent an expectation of assessing cortical regions relevant to the experiment’s hypothesis. However, this translation process remains a challenge for fNIRS experimental design. In the present study, we propose an approach that automatically decides the location of fNIRS optodes from a set of predefined positions with the aim of maximizing the anatomical specificity to brain regions-of-interest. The implemented method is based on photon transport simulations on two head atlases. The results are compiled into the publicly available “fNIRS Optodes’ Location Decider” (fOLD). This toolbox is a first-order approach to bring the achieved advancements of parcellation methods and meta-analyses from functional magnetic resonance imaging to more precisely guide the selection of optode positions for fNIRS experiments.
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ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-018-21716-z