Browsing Category: BCI

Brain-to-brain link allows one person to read another’s thoughts

University of Washington researchers used a direct brain-to-brain connection to enable pairs of participants to play a question-and-answer game by transmitting signals from one brain to the other over the Internet. The experiment is thought to be the first to show that two brains can be directly linked to allow one person to guess what’s on another person’s mind. […]

Biocompatible neural prosthetics

Spinal injury patients, and those with lost limbs, sometimes have neural prosthetic devices implanted in an attempt to regain independence.  They are used for deep brain stimulation and brain controlled external prosthetics.  However, neural prosthetics are often rejected by the immune system, and can  fail because of a mismatch between soft brain tissue and rigid […]

Continuously correcting BCI technique improves precision

Stanford‘s Krishna Shenoy has developed a more precise brain-controlled cursor for a virtual keyboard using a technique that continuously corrects brain readings. An algorithm analyzes the measured electrical signals that a prosthetic device obtained from sampled neurons. It adjusts  the signals so that the sample’s dynamics were more like baseline brain dynamics. The thought-controlled keypad would allow […]

Real time brain-to-brain interface demonstrated

In another Nicolelis Lab breakthrough,  networks formed by multiple animal brains, cooperating and exchanging information in real time through brain-to-brain interfaces, was demonstrated. The “Brainet” technology could provide the core of a new organic computer. In the recent study, four adult rat brains were interconnected. Brainets  concurrently recorded extracellular electrical activity generated by cortical neurons […]

Spoken sentences recreated from brain activity patterns

KIT‘s Tanja Schultz has reconstructed spoken sentences from brain activity patterns. Speech is produced in the cerebral cortex. Associated brain waves can be  recorded with surface electrodes. Schultz reconstructed basic units, words, and complete sentences from brain waves, and generated corresponding text. This was achieved by a combination of advanced signal processing and automatic speech recognition. […]

Intent controlled prosthetic foot using myoelectric sensors

Ossur‘s sensor implant allows amputees to control  bionic prosthetic limbs with their minds.  Myoelectric sensors are surgically placed in residual muscle tissue.  Prosthetic movement is triggered via a receiver. Ossur’s existing “smart limbs”  are capable of real-time learning and automatically adjust to a user’s gait, speed and terrain.   However,  conscious thought is still required. […]