Presenter ： Jung-Ting Jin Adviser ： Dr. Shih-Chung Chen Chairman ： Dr. Hung-Chi Yang Date ： December 31, 2014 BCI2000 ： A General- Purpose Brain-Computer Interface (BCI) System Gerwin Schalk*, Member, IEEE, Dennis J. McFarland, Thilo Hinterberger, Niels Birbaumer, and Jonathan R.Wolpaw IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING, VOL. 51, NO. 6, JUNE 2004

Outline Introduction BCI2000 System Design Initial Implementations of BCI2000 Online Evaluation And Validation Of BCI2000 Discussion Conclusion Reference 2

Introduction Brain-Computer Interface (BCI) Technology For people with severe motor disabilities End-stage amyotrophic lateral sclerosis Brainstem stroke Severe polyneuropathy Fig.1. Brain signals can be used to control a wheelchair. 3

Introduction Brain-Computer Interface (BCI) Technology Fig. 2. Basic design and operation of any BCI system. 4

Introduction Further Development of BCI Technology Systematic well-controlled studies A general-purpose BCI research and development system 5

BCI2000 System Design Essential Features Common Model Scalability Real-Time Capability Support and Facilitation of Offline Analyses Practicality 6

BCI2000 System Design Modules 1. Source Module 2. Signal Processing Module 7 3. User Application Module 4. Operator Module Fig. 3. BCI2000 design. BCI2000 consists of four modules

BCI2000 System Design System Variables Parameters System parameters are those variables that do not change throughout a data file Event markers Event markers record events. Each module has access to these event markers. Signals System signals are functions of the user’s brain by the modules. 8

Initial Implementations Of BCI2000 Platform C++ as the programming language Microsoft Windows™ 2000/XP as the operating system 9

Initial Implementations Of BCI2000 Modules Source Module: Five source module implementations have been created to date. Signal Processing Module: Extracts features from the digitized brain signals. The translation algorithm 10

Initial Implementations Of BCI2000 Modules User Application Module 11 Using sensorimotor rhythm control P300-based spelling application

Initial Implementations Of BCI2000 Modules User Application Module Provides the investigator with a graphical interface Offline Analysis Tools 12

Online Evaluation And Validation Of BCI2000 Online Performance 13 SCP control of cursor movementP300 control of a spelling program

Discussion Benefits of BCI2000 The primary benefit of BCI2000 to the investigator Benefits to the User 14

CONCLUSION BCI2000 is a general-purpose research and development platform 15

Reference 1. G. E. Birch and S. G. Mason, “Brain-computer interface research at the Neil Squire foundation,” IEEE Trans. Rehab. Eng., vol. 8, pp. 193–195, June T. Hinterberger, J. Kaiser, A. Kubler, N. Neumann, and N. Birbaumer, “The thought translation device and its applications to the completely paralyzed,” in Sci. Interfaces, Tuebingen: Genista-Verlag,

THANK YOU FOR YOUR ATTENTION. 17