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Towards a wireless open source instrument: functional Near-Infrared Spectroscopy in mobile neuroergonomics and BCI applications

Lühmann, Alexander von; Herff, Christian; Heger, Dominic; Schultz, Tanja

Abstract:
Brain-Computer Interfaces (BCIs) and neuroergonomics research have high requirements regarding robustness and mobility. Additionally, fast applicability and customization are desired. Functional Near-Infrared Spectroscopy (fNIRS) is an increasingly established technology with a potential to satisfy these conditions. EEG acquisition technology, currently one of the main modalities used for mobile brain activity assessment, is widely spread and open for access and thus easily customizable. fNIRS technology on the other hand has either to be bought as a predefined commercial solution or developed from scratch using published literature. To help reducing time and effort of future custom designs for research purposes, we present our approach toward an open source multichannel stand-alone fNIRS instrument for mobile NIRS-based neuroimaging, neuroergonomics and BCI/BMI applications. The instrument is low-cost, miniaturized, wireless and modular and openly documented on www.opennirs.org. It provides features such as scalable channel number, configurable regulated light intensities, programmable gain and lock-in amplification. In this paper, the system concept, hardware, software and mechanical implementation of the lightweight stand-alone instrument are presented and the evaluation and verification results of the instrument's hardware and physiological fNIRS functionality are described. ... mehr

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Volltext §
DOI: 10.5445/IR/1000050777
Originalveröffentlichung
DOI: 10.3389/fnhum.2015.00617
Scopus
Zitationen: 27
Web of Science
Zitationen: 44
Coverbild
Zugehörige Institution(en) am KIT Institut für Biomedizinische Technik (IBT)
Publikationstyp Zeitschriftenaufsatz
Jahr 2015
Sprache Englisch
Identifikator ISSN: 1662-5161
urn:nbn:de:swb:90-507772
KITopen-ID: 1000050777
Erschienen in Frontiers in human neuroscience
Band 9
Heft November
Seiten 617/1-14
Bemerkung zur Veröffentlichung Gefördert durch den KIT-Publikationsfonds
Schlagworte open source, functional near-infrared spectroscopy (fNIRS), brain computer interface (BCI), modularity, wearable devices, neuroergonomics
Nachgewiesen in Scopus
Web of Science
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