Assessment of cognitive neural correlates for a functional near infrared-based brain computer interface system

Hasan Ayaz, Patricia A. Shewokis, Scott Bunce, Maria Schultheis, Banu Onaral

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

39 Scopus citations

Abstract

Functional Near Infrared Spectroscopy (fNIR) is a promising brain imaging technology that relies on optical techniques to detect changes of hemodynamic responses within the prefrontal cortex in response to sensory, motor, or cognitive activation. fNIR is safe, non-invasive, affordable, and highly portable. The objective of this study is to determine if biomarkers of neural activity generated by intentional cognitive activity, as measured by fNIR, can be used to communicate directly from the brain to a computer. A bar-size-control task based on a closed-loop system was designed and tested with 5 healthy subjects across two days. Comparisons of the average task and rest period oxygenation changes are significantly different (p<0.01). The average task completion time (reaching +90%) decreases with practice: day1 (mean 52.3 sec) and day2 (mean 39.1 sec). These preliminary results suggest that a closed-loop fNIR-based BCI can allow for a human-computer interaction with a mind switch task.

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
Pages699-708
Number of pages10
DOIs
Publication statusPublished - Dec 1 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

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All Science Journal Classification (ASJC) codes

  • Theoretical Computer Science
  • Computer Science(all)

Cite this

Ayaz, H., Shewokis, P. A., Bunce, S., Schultheis, M., & Onaral, B. (2009). Assessment of cognitive neural correlates for a functional near infrared-based brain computer interface system. In Foundations of Augmented Cognition: Neuroergonomics and Operational Neuroscience - 5th International Conference, FAC 2009, Held as Part of HCI International 2009, Proceedings (pp. 699-708). (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 5638 LNAI). https://doi.org/10.1007/978-3-642-02812-0_79