All the information about Brain Gate Technology.You will understand this easily and will learn in an ease.

1. Presented by:
Saheeba Javeed(15)
M-Tech CSE

2.  Introduction
 Development
 Working Principle
 Types of Brain Computer Interface(BCI)
 Application
 Advantages
 Disadvantages
 Future Scope
 Conclusion

3.  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, such as patients
with spinal cord injury to operate various gadgets such
as TV, computer, lights, fan etc.

4.  It monitors brain activity in the patient and
converts the intention of the user into
computer commands.
 This can be used to control a robot arm or a
cursor on a screen

5. 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.

6.  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". The user can use
that cursor to control the computer, just as a mouse is
used.

7.  One way BCI
Computers either accept commands from
the brain or send signals to it.
 Two way BCI
Allow brains and external devices to
exchange information in both directions.

8.  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.

9.  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. Diagram

11. ECoG – ElectroCorticoGraphy:
 Measures the electric activity taken from the skull.
 Electrodes are embedded in a thin plastic pad above the
cortex.
 It has higher spatial resolutions, wider frequency range.

12. EEG – Electroencephalography
 Easiest and least invasive method.
 A device known as electroencephalograph is attached
to the scalp.
 Electrodes can read brain signals.
 Ease of use, Portability.
 An extensive training required before users can work
the technology.

13.  Used as medical devices.
 Control Video games and Televisions by thoughts.
 Robotic organs for humans.
 Thought controlled wheelchair.
 Trigger muscle and limb movement.

14.  Controlling remote devices.
 Making and receiving telephone calls.
 Accessing the internet.
 Turn on or off the lights.
 Control robotic arm.
 Motorized wheelchair.

15.  Expensive
 Risky Surgery
 Not Wireless yet
 Difficulty in adaptation and learning.
 Limitation in information transform rate.
 The latest technology is 20 bits/min.

16.  Current new advances include a second-generation
interface software M*Power controller that will enable
users to perform a wide variety of daily activities
without assistances of technician.
 Smaller ,wireless device .
 The user will have an improved control of respiratory
system, limb with muscle stimulation or robotics

17.  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.