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BRAINGATE SYSTEM
Presented by B.Prudhvi Reddy
13F61A04F2
Guided By Niraja Reddy
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
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.
Nicholas Halsopulas
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".
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
• The Neuro chip
• The connector
• The converter
• The computer
The components in this system
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
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.
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.
Brain Gate Research in HumanA boon to the paralyzed• Mathew-Nagel the first person to use the
brain-computer interface to restore functionality lost due to paralysis…
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
DISADVANTAGES
• Expensive• Risky Surgery• Not Wireless yet•Limitation in information transform rate.
The latest technology is 20 bits/min.
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
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