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3202012 BRAIN COMPUTER INTERFACE 2

CONTENTS

INTRODUCTION THE HUMAN BRAIN

ELECTROENCEPHALOGRAPHY BCI APPROACHES HARDWARE amp SOFTAWARE REQUIRED HOW BCI WORKS BCI FEEDBACK DRAWBACKS amp INNOVATORS APPLICATIONS CONCLUSION




INTRODUCTION

THE BRAIN COMPUTER INTERFACE

BCI Systems are systems

that uses Brain signals (ElectricalMagnetic Metabolic) to Control

external devices such ascomputers switches wheelchairsor neuroprosthesses Various Techniques used

FMRI MEG PET SPECTOptical brain imaging single

Neuron recording (with micro-Electrodes) amp ElectroEnce ndash phaloGraphy (EEG)




THE HUMAN BRAIN

MAJOR PART OF BRAIN WHICHSUPPORTS BCI

Brain divided in 4 parts

Cerebral Cortex

Cerebellum

Brain stem

Hypothalamus amp Thalamus

Fig 3 Human Brain




ELECTROENCEPHALOGRAPHY(EEG)

CONCEPT OF EEG

PROPERTIES OF EEG RYTHMIC BRAIN ACTIVITY

COMMON EEG FREQUENCYRANGES

EVENT RELATED POTENTIALS

(ERP`S)

EVENT RELATED DESYNCHRO-NIZATION (ERD)

EVENT RELATED SYNCHRINIZATION (ERS)

Fig 4 EEG frequency




BCI APPROACHES

TWO DIFFERENT BCI APPROACHES

PATTERN RECOGNITION APPROACHBASED ON MENTAL TASK

OPERANT CONDITIONING APPROACHBASED ON SELF REGULATION OF EEG




HARDWARE REQUIREMENTS

ELECTROENCEPHALO PROCESSORMODEL H11 (EEPH11)

EEG DEVICE

ELECTRODE CAP

EEG AMPLIFIERE

FIBRE OPTIC CABLE

COMPUTER OR SUBJECT SCREEN




SOFTWARE REQUIREMENTS

EEP H11 SERVER

ABI LEARNING PROGRAME

ABI ONLINE PROGRAME

ABI VISUALIZATION PROGRAME




HOW BCI WORKS

IT HAS SIX STAGES GENERATION OF

SIGNALS FROM BRAIN




HOW BCI WORKS

MEASUREMENT OF EEG PREPROCESSING

FEATURE EXTRACTION

CLASSIFICATION

DEVICE CONTROL




BCI FEEDBACK

BIOFEEDBACKIN GENERAL

EEGBIOFEEDBACK

FEEDBACKS INBCI

Fig 6 BCI Feedback




BCI FEEDBACKS

EFFECT OF FFEDBACK BENEFICIAL FEEDBACK

FURNISHES BENEFICIAL MOTIVATION

ENSURES ATTENTION TO THE TASK BYMAINTAINING SUBJECT`S INTEREST

IMPROVES PERFORMANCE BY RAPIDREACTION TO WRONG CLASSIFICATION

HARMFUL FEEDBACK

FEEDBACK STIMULUS MIGHT PREVENTCONCENTRATION ON INTERNAL STATES

FALSE CLASSIFICATION CAN ELICITFRUSTRATION amp THUS AFFECT THE EEGRESPONSE

VISUAL FEEDBACK STIMULUS AFFECT ALPHARHYTHM




BCI DRAWBACKS

THE DRAWBACKS OF BCI THE BRAIN IS INCREDIBLY COMPLEX

THE SIGNAL IS WEAK amp PRONE TOINTERFENCE

THE EQUIPMENTS IS LESS THANPORTABLE




BCI INNOVATORS

PIONEERS

NASA

CYBERKINETICS NEUROTECHNOLOGYSYSTEM

JAPANESE REASERCH TEAM




APPLICATIONS OF BCI

CONTROL A ROBOT

PLAYING GAMES

FOR PHYSICALLY WEAK PERSONS TOHANDLE THE COMPUTER

CURSOR CONTROL




CONCLUSION

In this work EEG-based brain computer interface systems

were reviewed and compared Experiments lasting five days

with three subjects were done with the new Adaptive Brain

Interface system

The comparison of the BCI systems especially their

training duration and performance proved to be difficult This

was because the results were reported differently in most of the papers Reporting the experiments and results should be

standardized




CONTENTS

INTRODUCTION THE HUMAN BRAIN

ELECTROENCEPHALOGRAPHY BCI APPROACHES HARDWARE amp SOFTAWARE REQUIRED HOW BCI WORKS BCI FEEDBACK DRAWBACKS amp INNOVATORS APPLICATIONS CONCLUSION




INTRODUCTION










THE HUMAN BRAIN



Cerebral Cortex

Cerebellum

Brain stem


Fig 3 Human Brain





CONCEPT OF EEG




(ERP`S)



Fig 4 EEG frequency




BCI APPROACHES









EEG DEVICE

ELECTRODE CAP

EEG AMPLIFIERE

FIBRE OPTIC CABLE






EEP H11 SERVER


ABI ONLINE PROGRAME





HOW BCI WORKS


SIGNALS FROM BRAIN




HOW BCI WORKS


FEATURE EXTRACTION

CLASSIFICATION

DEVICE CONTROL




BCI FEEDBACK


EEGBIOFEEDBACK

FEEDBACKS INBCI

Fig 6 BCI Feedback




BCI FEEDBACKS





HARMFUL FEEDBACK







BCI DRAWBACKS







BCI INNOVATORS

PIONEERS

NASA






APPLICATIONS OF BCI

CONTROL A ROBOT

PLAYING GAMES


CURSOR CONTROL




CONCLUSION




Interface system




standardized




INTRODUCTION










THE HUMAN BRAIN



Cerebral Cortex

Cerebellum

Brain stem


Fig 3 Human Brain





CONCEPT OF EEG




(ERP`S)



Fig 4 EEG frequency




BCI APPROACHES









EEG DEVICE

ELECTRODE CAP

EEG AMPLIFIERE

FIBRE OPTIC CABLE






EEP H11 SERVER


ABI ONLINE PROGRAME





HOW BCI WORKS


SIGNALS FROM BRAIN




HOW BCI WORKS


FEATURE EXTRACTION

CLASSIFICATION

DEVICE CONTROL




BCI FEEDBACK


EEGBIOFEEDBACK

FEEDBACKS INBCI

Fig 6 BCI Feedback




BCI FEEDBACKS





HARMFUL FEEDBACK







BCI DRAWBACKS







BCI INNOVATORS

PIONEERS

NASA






APPLICATIONS OF BCI

CONTROL A ROBOT

PLAYING GAMES


CURSOR CONTROL




CONCLUSION




Interface system




standardized




THE HUMAN BRAIN



Cerebral Cortex

Cerebellum

Brain stem


Fig 3 Human Brain





CONCEPT OF EEG




(ERP`S)



Fig 4 EEG frequency




BCI APPROACHES









EEG DEVICE

ELECTRODE CAP

EEG AMPLIFIERE

FIBRE OPTIC CABLE






EEP H11 SERVER


ABI ONLINE PROGRAME





HOW BCI WORKS


SIGNALS FROM BRAIN




HOW BCI WORKS


FEATURE EXTRACTION

CLASSIFICATION

DEVICE CONTROL




BCI FEEDBACK


EEGBIOFEEDBACK

FEEDBACKS INBCI

Fig 6 BCI Feedback




BCI FEEDBACKS





HARMFUL FEEDBACK







BCI DRAWBACKS







BCI INNOVATORS

PIONEERS

NASA






APPLICATIONS OF BCI

CONTROL A ROBOT

PLAYING GAMES


CURSOR CONTROL




CONCLUSION




Interface system




standardized





CONCEPT OF EEG




(ERP`S)



Fig 4 EEG frequency




BCI APPROACHES









EEG DEVICE

ELECTRODE CAP

EEG AMPLIFIERE

FIBRE OPTIC CABLE






EEP H11 SERVER


ABI ONLINE PROGRAME





HOW BCI WORKS


SIGNALS FROM BRAIN




HOW BCI WORKS


FEATURE EXTRACTION

CLASSIFICATION

DEVICE CONTROL




BCI FEEDBACK


EEGBIOFEEDBACK

FEEDBACKS INBCI

Fig 6 BCI Feedback




BCI FEEDBACKS





HARMFUL FEEDBACK







BCI DRAWBACKS







BCI INNOVATORS

PIONEERS

NASA






APPLICATIONS OF BCI

CONTROL A ROBOT

PLAYING GAMES


CURSOR CONTROL




CONCLUSION




Interface system




standardized




BCI APPROACHES









EEG DEVICE

ELECTRODE CAP

EEG AMPLIFIERE

FIBRE OPTIC CABLE






EEP H11 SERVER


ABI ONLINE PROGRAME





HOW BCI WORKS


SIGNALS FROM BRAIN




HOW BCI WORKS


FEATURE EXTRACTION

CLASSIFICATION

DEVICE CONTROL




BCI FEEDBACK


EEGBIOFEEDBACK

FEEDBACKS INBCI

Fig 6 BCI Feedback




BCI FEEDBACKS





HARMFUL FEEDBACK







BCI DRAWBACKS







BCI INNOVATORS

PIONEERS

NASA






APPLICATIONS OF BCI

CONTROL A ROBOT

PLAYING GAMES


CURSOR CONTROL




CONCLUSION




Interface system




standardized






EEG DEVICE

ELECTRODE CAP

EEG AMPLIFIERE

FIBRE OPTIC CABLE






EEP H11 SERVER


ABI ONLINE PROGRAME





HOW BCI WORKS


SIGNALS FROM BRAIN




HOW BCI WORKS


FEATURE EXTRACTION

CLASSIFICATION

DEVICE CONTROL




BCI FEEDBACK


EEGBIOFEEDBACK

FEEDBACKS INBCI

Fig 6 BCI Feedback




BCI FEEDBACKS





HARMFUL FEEDBACK







BCI DRAWBACKS







BCI INNOVATORS

PIONEERS

NASA






APPLICATIONS OF BCI

CONTROL A ROBOT

PLAYING GAMES


CURSOR CONTROL




CONCLUSION




Interface system




standardized





EEP H11 SERVER


ABI ONLINE PROGRAME





HOW BCI WORKS


SIGNALS FROM BRAIN




HOW BCI WORKS


FEATURE EXTRACTION

CLASSIFICATION

DEVICE CONTROL




BCI FEEDBACK


EEGBIOFEEDBACK

FEEDBACKS INBCI

Fig 6 BCI Feedback




BCI FEEDBACKS





HARMFUL FEEDBACK







BCI DRAWBACKS







BCI INNOVATORS

PIONEERS

NASA






APPLICATIONS OF BCI

CONTROL A ROBOT

PLAYING GAMES


CURSOR CONTROL




CONCLUSION




Interface system




standardized




HOW BCI WORKS


SIGNALS FROM BRAIN




HOW BCI WORKS


FEATURE EXTRACTION

CLASSIFICATION

DEVICE CONTROL




BCI FEEDBACK


EEGBIOFEEDBACK

FEEDBACKS INBCI

Fig 6 BCI Feedback




BCI FEEDBACKS





HARMFUL FEEDBACK







BCI DRAWBACKS







BCI INNOVATORS

PIONEERS

NASA






APPLICATIONS OF BCI

CONTROL A ROBOT

PLAYING GAMES


CURSOR CONTROL




CONCLUSION




Interface system




standardized




HOW BCI WORKS


FEATURE EXTRACTION

CLASSIFICATION

DEVICE CONTROL




BCI FEEDBACK


EEGBIOFEEDBACK

FEEDBACKS INBCI

Fig 6 BCI Feedback




BCI FEEDBACKS





HARMFUL FEEDBACK







BCI DRAWBACKS







BCI INNOVATORS

PIONEERS

NASA






APPLICATIONS OF BCI

CONTROL A ROBOT

PLAYING GAMES


CURSOR CONTROL




CONCLUSION




Interface system




standardized




BCI FEEDBACK


EEGBIOFEEDBACK

FEEDBACKS INBCI

Fig 6 BCI Feedback




BCI FEEDBACKS





HARMFUL FEEDBACK







BCI DRAWBACKS







BCI INNOVATORS

PIONEERS

NASA






APPLICATIONS OF BCI

CONTROL A ROBOT

PLAYING GAMES


CURSOR CONTROL




CONCLUSION




Interface system




standardized




BCI FEEDBACKS





HARMFUL FEEDBACK







BCI DRAWBACKS







BCI INNOVATORS

PIONEERS

NASA






APPLICATIONS OF BCI

CONTROL A ROBOT

PLAYING GAMES


CURSOR CONTROL




CONCLUSION




Interface system




standardized




BCI DRAWBACKS







BCI INNOVATORS

PIONEERS

NASA






APPLICATIONS OF BCI

CONTROL A ROBOT

PLAYING GAMES


CURSOR CONTROL




CONCLUSION




Interface system




standardized




BCI INNOVATORS

PIONEERS

NASA






APPLICATIONS OF BCI

CONTROL A ROBOT

PLAYING GAMES


CURSOR CONTROL




CONCLUSION




Interface system




standardized




APPLICATIONS OF BCI

CONTROL A ROBOT

PLAYING GAMES


CURSOR CONTROL




CONCLUSION




Interface system




standardized




CONCLUSION




Interface system




standardized

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