Brain gate system that which creates a path from computer to our brain.

1. BRAINGATE SYSTEM
Presented by
B.Prudhvi Reddy
13F61A04F2
Guided By
Niraja Reddy

2. INTRODUCTION
• It is a mind-to-movement system that allows a
quadriplegic man to control a computer using his
Thoughts.
• The system is to help those who have lost control
of their limbs, or other bodily functions,
• It monitors brain activity in the patient and
converts the intention of the user into computer
commands

3. DEVELOPMENT
• Company and Scientist:
• Brain Gate is a brain implant system
developed by the bio-tech company
Cyber kinetics in 2003 in conjunction with
the Department of Neuroscience at Brown
University.

4. Working Principle
• The principle of brain gate
neural interface system is that
which intact with brain function,
neural signals generated are
interpreted by the systems and a
cursor is shown to the user on a
computer screen that provides
an alternate “Brain Gate
pathway".

5. BCI Technology
• “BCIs” usually connects the brain (or nervous system) with a
computer system.
• A Brain Computer Interface, called as direct neural interface
or brain machine interface is a direct communication pathway
between human or animal brain and an external device.
• Based on the communicative Pathway BCI is classified as
follows
 One Way BCI
 Two Way BCI

6. • The Neuro chip
• The connector
• The converter
• The computer
The components in this system

7. Working
• The Brain Gate neural interface device is a
propriety brain-computer interface that consist
of an Inter neural signal sensor and External
Processors.
• The sensor consists of a tiny chip containing
100 microscopic electrodes that detect brain
cell electrical activity.
• The chip is implanted on the surface of brain in
the motor cortex area that controls movement.
Motor Cortex

8. Working (Cont.)
• External Processors convert neural signals into an
output signal under the users own control.
• In the pilot version of the device, a cable connects
the sensor to an external processor in a cart that
contains computers.
• The computers translate brain activity and create
the communication output using custom decoding
software.

10. HOW INFORMATION IS
TRANSMITTED?
• When a work is done through any part of body
then a potential difference is created in the brain.
• This potential difference is captured by the
electrodes and is transmitted via fiber optic to the
Digitizer(external processor).
• The digitizer converts the signal into some 0’s and
1’s and that is feed into the computer.

11. Brain Gate Research in Human
A boon to the paralyzed
• Mathew-Nagel the first person to use the
brain-computer interface to restore
functionality lost due to paralysis…

12. ADVANTAGES
• Controlling remote devices
• Making and receiving telephone
calls
• Accessing the internet.
• Turn on or off the lights
• Control robotic arm
• Watch and control television
• Use the pc
• Locking or unlocking doors
• Motorized wheelchair

13. DISADVANTAGES
• Expensive
• Risky Surgery
• Not Wireless yet
• Limitation in information transform rate.
The latest technology is 20 bits/min.

14. Conclusion
• The invention of Brain gate is such a revolution in
medical field. The remarkable breakthrough offers
hope that people who are paralyzed will one day
be able to independently operate artificial limbs,
computers or wheelchairs.
• The idea of moving robots or prosthetic devices
not by manual control, but by mere “thinking”
(i.e., the brain activity of human subjects) has
been a fascinated approach