brain computer interface
DESCRIPTION
BRAIN CoMPuTeR InTeRfAcE....TRANSCRIPT
S
BRAIN COMPUTER INTERFACES
CONTENTS
1) INTRODUCTION2) BCI MODEL
3) PRINCIPAL OF BCI 4) HISTORY
5) HOW DOES IT WORK?
6) WHAT IS AN EEG?7) BCI RESEARCHES8) BCI APPROACHES
9) APPLICATIONS10) ADVANTAGES
11) DISADVANTAGES12) PROJECTS& FUTURE
13) CONCLUSION14) REFERENCES
INTRODUCTIONIt is the study of brain functions.
A collaboration in which a brain accepts and controls a mechanical device.
Direct communication pathway between a brain and an external device.
Thus BCI extracts electro-physical signals from suitable components of the brain and process them to generate control signals for computers, robotic machines or communication devices.
BRAIN COMPUTER DEVICE
BCI PRINCIPLE:
(a) In healthy subjects, primary motor area sends movement commands to muscles via spinal cord.
(b) But in paralyzed people this pathway is interrupted.(c) A Computer based decoder is used, which translates this activity into
commands for muscle control.
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HISTORY
HANS BERGER was the one, completely involved in this Brain-Computer Interface(BCI), also called as Mind-Machine Interface’s(MMI) invention
In 1924, he was the first to record human brain activity by means of EEG
11MCA007
EEG IS MEASUREMENT OF ELECTRICAL ACTIVITY PRODUCED BY BRAIN AS RECORDED FROM ELECTRODES PLACED ON THE SCALP.
WHAT ISEEG?
BCI APPROACHES
TYPESInvasive Brain Computer Interfaces
-implanted directly into the brain and has the highest quality signals.
-provide functionality to paralyzed people.
Partially Invasive Brain Computer Interfaces
-implanted inside the skull but outside the brain.
Non Invasive Brain Computer Interfaces -gives a patient the ability to move muscle
implants and restore partial movement.
INVASIVE AND NON-INVASIVE
BCI RESEARCHES
ANIMAL RESEARCHES….
MONKEY OPERATING A ROBOTIC ARM WITH ITS MIND
HUMEN
RESEARCH…..
JENS NAUMANN, BECAME THE FIRST COMMERCIAL USER OF BCIS
APPLICATIONS1)MENTAL TYPEWRITER
2)BCI offers paralyzed patients improved quality
of life.3)MILITARY and CIVIL
RESEARCH.4)Allow patients to control a computer
by conscious changes of brain
activity.
APPLICATION OF BCI
IN MOVIES ….
STAR WARS
BCI INAVTAR
BCI IN AVATAR
ADVANTAGES1. DIRECT
COMMUNICATION between human brain
and computers.2. Better LIVING, more
FEATURES, more ADVANCEMENT in
technologies etc.3. New work area for
scientists and researches around the world.
4. LOW BANDWIDTH.
DISADVANTAGES1. Virus attacks may
occur to brain causing ill effects.
2. Requires extensive training.
3. BCI techniques are costly.
4. Slow speed.
CURRENT PROJECTS FUTURE WORKS
oBRAIN GATE
oHONDA ASIMO CONTROL
oGAMING CONTROL
oBIONIC EYE
oImproving physical methods for gathering EEGs.
oImproving generalization.
oImproving knowledge of how to interpret waves.
BRAIN GATE
T he sensor, which is implanted into the brain, monitors brain activity in the
patient and converts the intention of the user into computer commands.
HONDA ASIMO CONTROL
Researchers have developed an interface for Honda's Asimo
robot that allows individuals to control it simply by thinking.
GAMING CONTROL
Gaming control using a wearable and wireless EEG-based brain-computer interface device with novel dry foam-based sensors.
BIONIC EYE
A visual prosthesis, often referred to as a bionic eye, is an experimental visual device intended to restore functional vision in those suffering from partial or total blindness
BCI INFUTURE
CONCLUSION
Newly purchased computers will one day arrive with biological signal sensors and thought-recognition software built in, just as keyboard and mouse are commonly found on today's units.
REFERENCES
o www.elecdesign.com
o www.brainlab.org
www.en.wikipedia.com/braincomputerinterface
Thanks For
Your Precious
Time….
Ravi KumarCS(3rd Year)