Brain-computer interfaces (BCIs) offer a revolutionary pathway to restoring communication for individuals who have lost the ability to speak or move due to paralysis. These cutting-edge systems bridge the gap between the brain and external devices, allowing users to express their thoughts without physical movement. From aiding those with ALS to improving the quality of life for stroke survivors, BCIs are redefining assistive technology. But how exactly do they work, and what are the latest breakthroughs in this field?
BCIs are systems that directly interpret brain activity and translate it into digital commands. These interfaces work by detecting electrical signals in the brain using electrodes, processing the data, and converting it into actionable outputs.
There are two main types of BCIs:
- Non-invasive BCIs: Use external devices like EEG (electroencephalography) headsets to monitor brain activity. While easier to implement, they can have lower accuracy due to interference from the skull and scalp.
- Invasive BCIs: Require surgical implantation of electrodes directly into the brain. These systems provide higher precision but come with surgical risks…
