GO-STOP control using optical brain-computer interface during calculation task

Kei Utsugi, Akiko Obata, Hiroki Satou, Ryuta Aoki, Atsushi Maki, Hideaki Koizumi, Kazuhiko Sagara, Hiroaki Kawamichi, Hirokazu Atsumori, Takusige Katura

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

We have developed a prototype optical brain-computer interface (BCI) system that can be used by an operator to manipulate external, electrically controlled equipment. Our optical BCI uses near-infrared spectroscopy and functions as a compact, practical, unrestrictive, non-invasive brain-switch. The optical BCI system measured spatiotemporal changes in the hemoglobin concentrations in the blood flow of a subject's prefrontal cortex at 22 measurement points. An exponential moving average (EMA) filter was applied to the data, and then their weighted sum with a taskrelated parameter derived from a pretest is utilized for time-indicated control (GO-STOP) of an external object. In experiments using untrained subjects, the system achieved control patterns within an accuracy of ± 6 sec for more than 80% control.

Original languageEnglish
Pages (from-to)2133-2141
Number of pages9
JournalIEICE Transactions on Communications
VolumeE91-B
Issue number7
DOIs
Publication statusPublished - 2008 Jan 1
Externally publishedYes

Fingerprint

Brain computer interface
Near infrared spectroscopy
Hemoglobin
Brain
Blood
Switches
Control systems
Experiments

Keywords

  • Brain switch
  • Brain-computer interface
  • NIRS
  • Optical topography
  • Prefrontal cortex

ASJC Scopus subject areas

  • Software
  • Computer Networks and Communications
  • Electrical and Electronic Engineering

Cite this

GO-STOP control using optical brain-computer interface during calculation task. / Utsugi, Kei; Obata, Akiko; Satou, Hiroki; Aoki, Ryuta; Maki, Atsushi; Koizumi, Hideaki; Sagara, Kazuhiko; Kawamichi, Hiroaki; Atsumori, Hirokazu; Katura, Takusige.

In: IEICE Transactions on Communications, Vol. E91-B, No. 7, 01.01.2008, p. 2133-2141.

Research output: Contribution to journalArticle

Utsugi, K, Obata, A, Satou, H, Aoki, R, Maki, A, Koizumi, H, Sagara, K, Kawamichi, H, Atsumori, H & Katura, T 2008, 'GO-STOP control using optical brain-computer interface during calculation task', IEICE Transactions on Communications, vol. E91-B, no. 7, pp. 2133-2141. https://doi.org/10.1093/ietcom/e91-b.7.2133
Utsugi, Kei ; Obata, Akiko ; Satou, Hiroki ; Aoki, Ryuta ; Maki, Atsushi ; Koizumi, Hideaki ; Sagara, Kazuhiko ; Kawamichi, Hiroaki ; Atsumori, Hirokazu ; Katura, Takusige. / GO-STOP control using optical brain-computer interface during calculation task. In: IEICE Transactions on Communications. 2008 ; Vol. E91-B, No. 7. pp. 2133-2141.
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