A Brain-Computer interface or BCI is a direct
communication pathway between an enhanced or wired
brain and an external device.
These can be invasive in the form of electrodes implanted
directly on the brain or non-invasive through an EEG for
example, that reads the electrical brain waves on our scalp
that are translated into commands that an external
hardware and software executes.
It can be used for a variety of things, such as helping people
with physical disabilities to adapt better through the use of
a robotic hand controlled by the mind for example, or use
BCI in gaming to execute different commands, or to control
other external hardware, like a drone. Apart from these
examples, the technology allows for many applications in
different fields the have not yet been explored.