BY-

ABHISHEK VERMA

3rd year IT DEP.

INTRODUCTION

HISROTY

WORKING

TYPES OF BCIs

APPLICATIONS OF BCI

FUTURE CONCERNS

ADVANTAGES AND DISADVANTAGES

FUTURE WORK

CONCLUSION

REFRENCES

QUERIES

A brain–computer interface (BCI), sometimes called brain–machine interface (BMI), is a direct communication pathway between the brain and an external device.

: A BCI, is a communication system in which your brain does not use nerves to give orders to your body or to the world outside. "A BCI provides its user with an alternative method for acting on the world".

• Jonathan Wolpaw

1) The history of brain–computer interfaces (BCIs) starts with Hans Berger's discovery of the electrical activity of the human brain and the development of electroencephalography (EEG).

2) In 1924 Berger was the first to record human brain activity by means of EEG.

3) Research on BCIs began in the 1970s at the University of California Los Angeles (UCLA) under a grant from the National Science Foundation, followed by a contract from DARPA.

Signal acquisition

Signal features Translation

algorithmDevice commands

The sensor, which is implanted into the brain, monitors brain activity in the patient and converts the intention of the user into computer commands.

Invasive BCI

Invasive BCIs are implanted directly into the grey matter of the brain during neurosurgery.

Non Invasive BCINon-Invasive BCIs do not involve neurosurgery. They

are just like wearable virtual reality devices.

Semi Invasive BCI

Partially invasive BCI devices are implanted inside the skull but rest outside the brain rather than within the grey matter.

One of the most exciting areas of BCI research is the development of devices that can be controlled by thoughts.

For a quadriplegic, something as basic as controlling a computer cursor via mental commands would represent a revolutionary improvement in quality of life.

Some of the applications of this technology are also frivolous, such as the ability to control a video game by thought , ability to change TV channels with your mind etc.

HONDA ASIMO CONTROL

A visual prosthesis, often referred to as a bionic eye, is an experimental visual device intended to restore functional vision in those suffering from partial or total blindness

Gaming control using a wearable and wireless EEG-based brain-computer interface device with novel dry foam-based sensors.

FUTURE

CONCERNS….

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Humans dive into a virtual world by connecting their brains directly to a computer.

Allow paralyzed people to control prosthetic limbs with their mind.

Allow gamers to control video games with their minds.

Allow a mute person to have their thoughts displayed and spoken by a computer.

Mental Typewriter.

For lie detecting test

Research is still in beginning stages

The current technology is crude

Electrodes outside of the skull can detect very few

electric signals from the brain

Electrodes placed inside the skull create scar tissue in

the brain

Virtual Reality

Bluesense,Sniff mode

Bluesense, Security

The results of BCI are spectacular and almost unbelievable.

BCI can help paralyzed people to move by controlling theirown electric wheelchairs, to communicate by using e-mail and Internet-based phone systems, and to be independent by controlling items such as televisions and electrical appliances.

Conclusively, BCI has proved to be a boon for paralyzed patients .

Difficulty in adaptation and learning.

Very expensive.

Combining brain computer interfaceswith vision for object categorization,inProc. IEEE Computer. Visual. Pattern Recognition., 2008.

Ahmed Elmorshidy, Brain Chip Implants: Controlling Movements with Thought Alone:The Impossible Becomes Reality, 2010.

http://en.wikipedia.org/wiki/Brain%E2%80%93computerface

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