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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish (US)
Title of host publicationFoundations of Augmented Cognition
Subtitle of host publicationNeuroergonomics and Operational Neuroscience - 5th International Conference, FAC 2009, Held as Part of HCI International 2009, Proceedings
Pages709-718
Number of pages10
DOIs
StatePublished - 2009
Event5th International Conference on Foundations of Augmented Cognition, FAC 2009, Held as Part of HCI International 2009 - San Diego, CA, United States
Duration: Jul 19 2009Jul 24 2009

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume5638 LNAI
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Other

Other5th International Conference on Foundations of Augmented Cognition, FAC 2009, Held as Part of HCI International 2009
CountryUnited States
CitySan Diego, CA
Period7/19/097/24/09

Keywords

  • Combinatorial Hb states
  • Diffuse optical tomography
  • Fast signal
  • NIRS technology
  • Neuroactivation
  • Visual stimulus
  • fNIRS imaging

ASJC Scopus subject areas

  • Theoretical Computer Science
  • Computer Science(all)

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