Major Seminar Ppt

8/2/2019 Major Seminar Ppt

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Seminar on

BRAIN GATE SYSTEM

Submitted By Submitted To


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CONTENTS

What is brain gate Objective of brain gate Basic process How it works Types of brain gate Brain gate research in animals Implementation Brain gate chip Dr. Donoghue and his patient

Mathew Nagle and his statement Challenges faced by brain gate Future aspects Applications

Conclusion


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What is Brain Gate/ Brain Machine

Interface/ Brain Computer Interface???

BCI direct

communicationpathway between a

brain or brain cell

culture and a device

(computer)
http://en.wikipedia.org/wiki/Image:BrainGate.jpg


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Objective of Brain Gate !!!!

To develop a fast and reliable connectionbetween brain of a disabled person and a personal

computer .


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Basic Process

The electrode

translates brain activity

and sends theinformation to the

computer in a format it

can understand.


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How it Works

BrainGate uses a sensor that is implanted

onto the motor cortex of the brain. The

device analyzes brain signals then interprets

and translated them into cursor movements.


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Types of Brain Computer Interface(BCI):

One way BCI

Computers either accept commands from the brain

or send signals to it

Two way BCI

Allow brains and external devices to exchangeinformation in both directions.


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Brain Gate Research in animals:

At first, rats were

implanted with BCI .

Signals recorded from

the cerebral cortex of ratto operate BCI to carry

out the movement.After rats,

now on monkeys . . . .


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It Worked!

Using only its mind the monkey was able to control acursor on a computer monitor via Brain Gate.


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Since there were no

complications in trials with

monkeys

Next Step: Humans!


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Now BCI tested on a human by an American company

Cyberkinetics.

First participant, a 25-year-old man Nagle having spinal cord

injury leading to paralysis in all four limbs.

Over a period of nine months, he got success.


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HOW IT IMPLEMENTS ?


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BRAINGATE CHIP

Chip is implanted on the surface of the brain in the

motor cortex area, the area that controls movement


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The Brain Gate sensor (Red arrow), resting on a US penny,connected by a cable to the Pedestal (Black arrow), which issecured to the skull. Neural signals are recorded while the

pedestal is connected to the remainder of the Brain Gatesystem


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DR.DONOGHUE AND HIS

PATIENT NAGLE


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Matthew Nagle

Using the Brain Gate system, Matt couldcontrol a cursor on a computer screen

Control TV Check e-mail

Draw on screen

He could also send commands to an external

prosthetic hand


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Nagles statement-

I can't put it into words. It's justI use my

brain. I just thought it. I said, "Cursor go up to

the top right." And it did, and now I can control

it all over the screen. It will give me a sense of

independence.


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Challenges faced by Brain Gate

Very expensive.

Limitation in information transform rate. The latest

technology is 20 bits/min.

Difficulty in adaptation and learning.


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Future aspects-

In the next few years, Cyberkinetics

hopes to refine the chip to develop a

wireless version

No need for a plug

Safer

Less visible


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CURRENT APPLICATIONS:

Navigate Internet

Play Computer Games

Turn Lights On and Off

Control Television


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FUTURE APPLICATIONS:

Regulating Breathing

Controlling BodyFunctions


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CONCLUSION

Using Brain Gate, the patient can read e-mail, playvideo games, turn lights on or off , change channels

or adjust the volume of a television set.

Brain Gate can help paralyzed people move bycontrolling their own electric wheelchairs,

communicate by using e-mail and Internet-based

phone systems, and be independent by controlling

items such as televisions and thermostats. Finally BRAIN GATE has proved to be a boon for

paralyzed patient.


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Thankyou

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