BRAIN COMPUTER INTERFACE......

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BRAIN CoMPuTeR InTeRfAcE....

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BRAIN COMPUTER INTERFACE......

  1. 1. S
  2. 2. 1) INTRODUCTION 2) BCI MODEL 3) PRINCIPAL OF BCI 4) HISTORY 5) HOW DOES IT WORK? 6) WHAT IS AN EEG? 7) BCI RESEARCHES 8) BCI APPROACHES 9) APPLICATIONS 10) ADVANTAGES 11) DISADVANTAGES 12) PROJECTS& FUTURE 13) CONCLUSION 14) REFERENCES
  3. 3. It is the study of brain functions. A collaboration in which a brain accepts and controls a mechanical device. Direct communication pathway between a brain and an external device. Thus BCI extracts electro-physical signals from suitable components of the brain and process them to generate control signals for computers, robotic machines or communication devices.
  4. 4. BCI MODEL
  5. 5. (a) In healthy subjects, primary motor area sends movement commands to muscles via spinal cord. (b) But in paralyzed people this pathway is interrupted. (c) A Computer based decoder is used, which translates this activity into commands for muscle control.
  6. 6. 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 11MCA007 7
  7. 7. EEG IS MEASUREMENT OF ELECTRICAL ACTIVITY PRODUCED BY BRAIN AS RECORDED FROM ELECTRODES PLACED ON THE SCALP. EEG?
  8. 8. Invasive Brain Computer Interfaces -implanted directly into the brain and has the highest quality signals. -provide functionality to paralyzed people. Partially Invasive Brain Computer Interfaces -implanted inside the skull but outside the brain. Non Invasive Brain Computer Interfaces -gives a patient the ability to move muscle implants and restore partial movement.
  9. 9. MONKEY OPERATING A ROBOTIC ARM WITH ITS MIND
  10. 10. RESEARCH…..
  11. 11. 1)MENTAL TYPEWRITER 2)BCI offers paralyzed patients improved quality of life. 3)MILITARY and CIVIL RESEARCH. 4)Allow patients to control a computer by conscious changes of brain activity.
  12. 12. IN MOVIES …. STAR WARS
  13. 13. AVTAR
  14. 14. 1. DIRECT COMMUNICATION between human brain and computers. 2. Better LIVING, more FEATURES, more ADVANCEMENT in technologies etc. 3. New work area for scientists and researches around the world. 4. LOW BANDWIDTH.
  15. 15. 1. Virus attacks may occur to brain causing ill effects. 2. Requires extensive training. 3. BCI techniques are costly. 4. Slow speed.
  16. 16. FUTURE WORKS o BRAIN GATE o HONDA ASIMO CONTROL o GAMING CONTROL o BIONIC EYE o Improving physical methods for gathering EEGs. o Improving generalization. o Improving knowledge of how to interpret waves.
  17. 17. T he sensor, which is implanted into the brain, monitors brain activity in the patient and converts the intention of the user into computer commands.
  18. 18. Researchers have developed an interface for Honda's Asimo robot that allows individuals to control it simply by thinking.
  19. 19. Gaming control using a wearable and wireless EEG-based brain-computer interface device with novel dry foam- based sensors.
  20. 20. 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
  21. 21. FUTURE
  22. 22. Newly purchased computers will one day arrive with biological signal sensors and thought-recognition software built in, just as keyboard and mouse are commonly found on today's units.
  23. 23. o www.elecdesign.com o www.brainlab.org www.en.wikipedia.com/brainc omputerinterface
  24. 24. Ravi Kumar CS(3rd Year)

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