Systems and Strategies for Accessing the Information Content of fNIRS Imaging in Support of Noninvasive BCI Applications

  • Randall L. Barbour
  • Harry L. Graber
  • Yong Xu
  • Yaling Pei
  • Glenn R. Wylie
  • Gerald T. Voelbel
  • John DeLuca
  • Andrei V. Medvedev
Part of the Lecture Notes in Computer Science book series (LNCS, volume 5638)


An essential component for a practical noninvasive brain-computer interface (BCI) system is data recording technology that can access the information-processing activity of the brain with high fidelity and throughput. Functional near-infrared spectroscopic (fNIRS) imaging is a methodology that shows promise in meeting this need, having a demonstrated sensitivity to both the slow hemodynamic response that follows neuroactivation and to the lower amplitude fast optical response that is considered a direct correlate of neuroactivation. In this report we summarize the technology integration strategy we have developed that permits detection of both signal types with a single measuring platform, and present results that document the ability to detect these data types transcranially in response to two different visual paradigms. Also emphasized is the effectiveness of different data analysis approaches that serve to isolate signals of interest. The findings support the practical utility of NIRS-based imaging methods for development of BCI applications.


Diffuse Optical Tomography fNIRS imaging fast signal combinatorial Hb States Neuroactivation Visual Stimulus NIRS Technology 


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Copyright information

© Springer-Verlag Berlin Heidelberg 2009

Authors and Affiliations

  • Randall L. Barbour
    • 1
    • 2
  • Harry L. Graber
    • 1
    • 2
  • Yong Xu
    • 1
    • 2
  • Yaling Pei
    • 2
  • Glenn R. Wylie
    • 3
  • Gerald T. Voelbel
    • 3
  • John DeLuca
    • 3
  • Andrei V. Medvedev
    • 4
  1. 1.Department of PathologySUNY Downstate Medical CenterBrooklynUSA
  2. 2.NIRx Medical TechnologiesGlen HeadUSA
  3. 3.Kessler Foundation Research CenterW. OrangeUSA
  4. 4.Center for Functional and Molecular ImagingGeorgetown University Medical CenterWashingtonUSA

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