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

被引：8

作者：

Utsugi, Kei ^{[1
]}

Obata, Akiko ^{[2
]}

Sato, Hiroki ^{[2
]}

Aoki, Ryuta ^{[3
]}

Maki, Atsushi ^{[2
]}

Koizumi, Hideaki ^{[2
]}

Sagara, Kazuhiko ^{[4
]}

Kawamichi, Hiroaki ^{[1
]}

Atsumori, Hirokazu ^{[2
]}

Katura, Takusige ^{[2
]}

机构：

[1] Hitachi Ltd, Syst Dev Lab, Kawasaki, Kanagawa 2150013, Japan

[2] Hitachi Ltd, Adv Res Lab, Saitama 3500395, Japan

[3] Univ Tokyo, Grad Sch Arts & Sci, Dept Life Sci, Tokyo 1538902, Japan

[4] Hitachi Ltd, Cent Res Lab, Kokubunji, Tokyo 1858601, Japan

来源：

IEICE TRANSACTIONS ON COMMUNICATIONS | 2008年 / E91B卷 / 07期

关键词：

NIRS; optical topography; brain-computer interface; brain switch; prefrontal cortex;

D O I：

10.1093/ietcom/e91-b.7.2133

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We have developed a prototype optical brain-computer interface (130) 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 task-related 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 see for more than 80% control.

引用

页码：2133 / 2141

页数：9

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