The three major types of BCIs in animals and humans are as follows:
1) Invasive BCI : In this type, devices are implanted directly into the brain. They provide highest quality signals. These devices are used to provide functionality to paralyzed people.
2) Non-invasive BCI : EEG signal is taken by placing electrodes on the scalp.
3) Semi-invasive BCI : ECoG signal is taken from electrodes placed in dura mater or in arachnoid mater beneath the skull.
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Advantages of Brain Computer Interface:
➨It allows paralyzed people to control the prosthetic limbs with their mind.
➨Transmit visual images to the mind of a blind person which allows them to see.
➨Transmit auditory data to the mind of a deaf person which allows them to hear.
➨It allows gamers to control the video games with their minds.
➨It allows a mute person to have their thoughts to be displayed and spoken by computer.
Disadvantages of Brain Computer Interface:
➨Electrodes outside of the skull can detect very few electric signals from the brain.
➨Electrodes placed inside teh skull create scar tissue in the brain.
➨The present BCI technology is crude.
➨BCI research is still at initial stages and not at matured stage.
➨Ethical issues may prevent its development.
Source: https://www.rfwireless-world.com/Terminology/Advantages-and-Disadvantages-of-Brain-Computer-Interface.html
So, Will you put a hole in my head?
