NEWS on nervous system implants
Brain interfaces could let paralyzed people speak at almost normal speeds
An ALS patient set a record for communicating via a brain implant: 62 words per minute. Eight years ago, a patient lost her power of speech because of ALS, or Lou Gehrig’s disease, which causes progressive paralysis. She can still make sounds, but her words have become unintelligible, leaving her...
A high-performance speech neuroprosthesis
Speech brain-computer interfaces (BCIs) have the potential to restore rapid communication to people with paralysis by decoding neural activity evoked by attempted speaking movements into text or sound.Early demonstrations, while promising, have not yet achieved accuracies high enough for communication of unconstrainted sentences from a large vocabulary. Here, we demonstrate...
Feasibility Study of the BrainGate Neural Interface System
Interim Safety Profile From the Feasibility Study of the BrainGate Neural Interface System Brain computer interfaces (BCIs) are being developed to restore mobility, communication, and functional independence to people with paralysis. Though supported by decades of preclinical data, the safety of chronically implanted microelectrode array BCIs in humans is unknown....
Brain stimulation boosts hearing in rats with ear implants
Study identifies neurons that can improve sound perception, which could explain the variation in performance in people with cochlear devices. Stimulating neurons that are linked to alertness helps rats with cochlear implants learn to quickly recognize tunes, researchers have found. The results suggest that activity in a brain region called...
Optimal deep brain stimulation sites and networks for stimulation of the fornix in Alzheimer’s disease
Deep brain stimulation (DBS) to the fornix is an investigational treatment for patients with mild Alzheimer’s Disease. Outcomes from randomized clinical trials have shown that cognitive function improved in some patients but deteriorated in others. This could be explained by variance in electrode placement leading to differential engagement of neural...
The human cost of neurotechnology failure
When the makers of electronic implants abandon their projects, people who rely on the devices have everything to lose. Hundreds of thousands of people benefit from implanted neurotechnology every day. Among the most common devices are spinal-cord stimulators, first commercialized in 1968, that help to ease chronic pain. Cochlear implants...
Musk intends to implant brain computer chips in humans in 2023
Elon Musk and one of his other companies intend to begin testing computer chips in the brain next year. Neuralink will be able to insert the implant into a person's brain in 06-2023, Musk announced at his startup's annual press conference. The interface produced by Neuralink will make it possible...
implant, that turns brain waves into words
A computer screen shows the question “Would you like some water?” Underneath, three dots blink, followed by words that appear, one at a time: “No I am not thirsty.” It was brain activity that made those words materialize—the brain of a man who has not spoken for more than 15...
Maturation and circuit integration of transplanted human cortical organoids
Self-organizing neural organoids represent a promising in vitro platform with which to model human development and disease. However, organoids lack the connectivity that exists in vivo, which limits maturation and makes integration with other circuits that control behaviour impossible. Here we show that human stem cell-derived cortical organoids transplanted into the...
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