The document discusses brain-computer interfaces (BCIs), which allow direct communication between the brain and external devices, enabling control over activities like cursor movement or prosthetic limb operation. It covers the history, functioning based on EEG technology, various applications in gaming and aiding individuals with disabilities, and future developments towards more integrated brain-computer capabilities. Research on BCIs has evolved from early experiments in the 1970s to current advancements in assisting vision and mobility.

1. Brain Computer InterfaceDeveloped by: Poriya BirenBCA 2nd Sam Harivandana Collage

2. INDEXWhat is BCI ?

3. History of BCI…

4. How brain interface works?

5. BCI input-output...

6. BCI Application…

7. BCI research…

8. Advantages of BCI…

9. Future developments What is BCI ?

10. What is BCI?A brain-computer-interface, or 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".

11. Jonathan Wolpaw

12. Brain-computer interface (BCI) is a collaboration between a brain and a device that enables signals from the brain to direct some external activity, such as control of a cursor or a prosthetic limb. The interface enables a direct communications pathway between the brain and the object to be controlled. In the case of cursor control.

13. General DefinitionBrain computer Device

14. History of BCI…

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

16. DARPA stands for ”Defense Advanced Research Projects Agency”

17. The papers published after this research also mark the first appearance of the expression brain–computer interface in scientific literature.

18. Sept. 1999, the BCI research team had developed a single-position, brain-controlled switch that responds to specific patterns detected in spatiotemporal electroencephalograms (EEG) measured from the human scalp.How Brain computer interface works?

19. How Brain computer interface works:

20. BCI is a direct communication pathway between a brain and an external device.How BCI work Video Introduction:

21. BCI Works on EEG technology

22. What is EEG?EEG means “Electroencephalography”

23. Our mind produce various waves, Scientists can detect those signals, interpret what they mean and use them to direct a device of some kind.

24. the recording of electrical activity along the scalp produced by the firing of neurons within the brain.

25. Neurons Means

26. Neurons are specialized to transmit information throughout the body.NeuronNeuronseveral different types of neurons responsible for different tasks in the human body. neuron

27. Waves Images:Delta wave Theta waveAlpha waveBeta wave

29. Deltais the frequency range up to 4 Hz. It tends to be the highest in amplitude and the slowest waves. It is seen normally in adults in slow wave sleep. It is also seen normally in babies.

30. Theta is the frequency range from 4 Hz to 7 Hz. Theta is seen normally in young children. It may be seen in drowsiness or arousal in older children and adults; it can also be seen in meditation.