An improved asynchronous brain interface: making use of the temporal history of the LF-ASD feature vectors

被引：17

作者：

Bashashati, Ali ^{[1
]}

Mason, Steve

Ward, Rabab K.

Birch, Gary E.

机构：

[1] Univ British Columbia, Dept Elect & Comp Engn, Vancouver, BC V6T 1Z4, Canada

[2] Neil Squire Soc, Burnaby, BC V5M 3Z3, Canada

[3] Inst Comp Informat & Cognit Syst, Vancouver, BC V6T 1Z4, Canada

来源：

JOURNAL OF NEURAL ENGINEERING | 2006年 / 3卷 / 02期

关键词：

D O I：

10.1088/1741-2560/3/2/002

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

The low-frequency asynchronous switch design (LF-ASD) has been introduced as a direct brain interface (BI) for asynchronous control applications. Asynchronous interfaces, as opposed to synchronous interfaces, have the advantage of being operational at all times and not only at specific system-defined periods. This paper modifies the LF-ASD design by incorporating into the system more knowledge about the attempted movements. Specifically, the history of feature values extracted from the EEG signal is used to detect a right index finger movement attempt. Using data collected from individuals with high-level spinal cord injuries and able-bodied subjects, it is shown that the e ' rror characteristics of the modified design are significantly better than the previous LF-ASD design. The true positive rate percentage increased by up to 15 which corresponds to 50% improvement when the system is operating with false positive rates in the 1-2% range.

引用

页码：87 / 94

页数：8

共 18 条

[1] SINGLE-TRIAL PROCESSING OF EVENT-RELATED POTENTIALS USING OUTLIER INFORMATION [J].

BIRCH, GE ;

LAWRENCE, PD ;

HARE, RD .

IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING, 1993, 40 (01) :59-73

[2] Initial oh-line evaluations of the LF-ASD brain-computer interface with able-bodied and spinal-cord subjects using imagined voluntary motor potentials [J].

Birch, GE ;

Bozorgzadeh, Z ;

Mason, SG .

IEEE TRANSACTIONS ON NEURAL SYSTEMS AND REHABILITATION ENGINEERING, 2002, 10 (04) :219-224

[3] Brain-computer interface design for asynchronous control applications: Improvements to the LF-ASD asynchronous brain switch [J].

Borisoff, JF ;

Mason, SG ;

Bashashati, A ;

Birch, GE .

IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING, 2004, 51 (06) :985-992

[4] Toward a direct brain interface based on human subdural recordings and wavelet-packet analysis [J].

Graimann, B ;

Huggins, JE ;

Levine, SP ;

Pfurtscheller, G .

IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING, 2004, 51 (06) :954-962

[5] THE SELF-ORGANIZING MAP [J].

KOHONEN, T .

PROCEEDINGS OF THE IEEE, 1990, 78 (09) :1464-1480

[6] A direct brain interface based on event-related potentials [J].

Levine, SP ;

Huggins, JE ;

BeMent, SL ;

Kushwaha, RK ;

Schuh, LA ;

Rohde, MM ;

Passaro, EA ;

Ross, DA ;

Elisevich, KV ;

Smith, BJ .

IEEE TRANSACTIONS ON REHABILITATION ENGINEERING, 2000, 8 (02) :180-185

[7] A brain-controlled switch for asynchronous control applications [J].

Mason, SG ;

Birch, GE .

IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING, 2000, 47 (10) :1297-1307

[8] Real-time control of a video game with a direct brain-computer interface [J].

Mason, SG ;

Bohringer, R ;

Borisoff, JF ;

Birch, GE .

JOURNAL OF CLINICAL NEUROPHYSIOLOGY, 2004, 21 (06) :404-408

[9] Designing pointing devices using brain-computer interface technology [J].

Mason, SG ;

Moore, MM ;

Birch, GE .

1ST INTERNATIONAL IEEE EMBS CONFERENCE ON NEURAL ENGINEERING 2003, CONFERENCE PROCEEDINGS, 2003, :610-613

[10] A general framework for brain-computer interface design [J].

Mason, SG ;

Birch, GE .

IEEE TRANSACTIONS ON NEURAL SYSTEMS AND REHABILITATION ENGINEERING, 2003, 11 (01) :70-85

← 1 2 →