BRAIN COMPUTER INTERFACE11MCA007

JEEVAGAN.V.N

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BRAIN FACTS

An adult human brain weighs on average about 1.5 kg

It is divided into forebrain, midbrain and hindbrain

The dominant feature, cerebral cortex, is so large that it overshadows every other part of the brain

Our brain can survive upto 4 to 6 minutes without oxygen before it starts to die

There are 100 billion number of neurons in our brain

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SIMPLE VIEWS OF THE BRAIN 3

BCI SYSTEM ARCHITECTURE 4

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

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WHAT IS BCI???

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BCI

Direct communication path between a brain and an external device

Mind-Machine Interface (MMI), or sometimes called a direct neural interface or a brain–machine interface (BMI)

BCI versus neuroprosthetics

The term "BCI" usually designates a narrower class of systems which interface with the central nervous system

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How does it work?

Signal acquisition

Signal processing

Devices

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Data acquisition 9

Data AcquisitionData Acquisition

Invasive BCIs

Non-Invasive BCIs

Partially-Invasive BCIs

Wireless BCIs

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Invasive BCIs

The target of this is to repair damaged sight

Provides new functionality to persons with paralysis

Also artificial vision system

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Artificial Vision 12

Non-Invasive BCIs

The interfaces used here are EEG, MEG, MRI

It powers muscle implants and restore partial movement

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Partially-Invasive BCIs

It is a signal quality between invasive and non-invasive BCIs

It lowers risk of forming scar-tissue in the brain

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Wireless BCIs

More practical one

Multiple chips

It keeps the heat down (key requirement)

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Examples

Rats implanted with BCIs in Theodore Berger’s experiments

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Controlling a robotic dog with BCI 17

Future Vision

Now, only on laboratories – future will be on factory

Enlarges it’s boundary

Nursing and medical treatment will be benefitted more with Brain-Computer Interface

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The BCI Award

Cuntai Guan, Kai Keng Ang, Karen Sui Geok Chua and Beng Ti Ang, from A*STAR in Singapore, with their project "Motor imagery-based Brain-Computer Interface robotic rehabilitation for stroke", won the BCI Award 2010

The award comprises of 3000 USD

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DISADVANTAGES??? 20

THANK YOU!!!

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Hope u’ll be one of the person who gonna fetch that prize money