Brain-Computer Interface

Subject – Applied BiologyGuidance – Mrs. Vidya Karve

Presented By -1) Ankit Mhaske2) Akash Pawar

Index•Definition•Need•Principle•Types•History•Implementation•How BCI implements•Technology behind BCI•Applications•Limitations•Conclusion

BRAIN-COMPUTER Interface (BCI) ?• Fast-growing Technology

• Communication Between Brain and External Device

• Also known as DNI or BMI

Why BCI

Principle Behind BCI

• Language Of Neurons

• Consists of a sensor and a Device.

• Silicon Array the size of a table

Types of BCI’s

• Invasive BCI• Non Invasive BCI• Partially Invasive BCI

History of BCI

• Research has been going on for than 20 years.

• Commercially Developed By the Bio-Tech Company CyberKinetics in 2003 in conjunction with the department of Neuroscience at Brown University

Implementation

BCI Research on Rats, Monkey

Since there were no complications.

Clearly,Next step - Humans

BCI on HUMANS

• On December 7, 2004, CyberKinetics clinically tested its Brain-Computer Interface on a human.

• 25 year old with paralysis in all four limbs.

• The implanted brain gate sensor recorded activity in his motor cortex region while he imagined.

How BCI implements

• Subject must be trained to use the Device.

• With an implant in place, the subject would visualize closing his or her disabled hand. And with trials the software recognizes the signal.

Technology behind BCI

The technology is comprised of four main components-1) Signal Capture System2) Signal Processing System3) Pattern Recognition System4) Device Control System

Applications of BCI• One of the most exciting areas of BCI research is the development of devices that can be CONTROLLED BY THOUGHT.

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

• Ability to control video game by thought, ability to change TV channels with your mind, etc.

Limitations

• Lack Of Sensor Modality

• Very Expensive

• Difficulty in Adaptation and Learning

Conclusion

•The Results of BCI are almost Spectacular.

•BCI can help paralyzed people to move by controlling their own electric wheelchairs, to communicate by using emails, etc.

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

Thank You!