Typing with your brain and thoughts? Meta’s AI can do it, but there’s a catch

 

Typing with your brain and thoughts? Meta’s AI can do it, but there’s a catch

Meta has developed a brain-typing AI using advanced neuroscience and AI technology. Despite its potential, the system remains confined to lab settings due to its high cost and operational constraints.

In 2017, Facebook (now Meta) had a bold idea: a brain-reading hat that would let you type just by thinking. Years later, the company actually built something similar, but the catch is that it’s nowhere near ready for everyday use.

Meta’s brain-typing system uses artificial intelligence (AI) and neuroscience to analyse brain activity and predict which keys a person is pressing, just from their thoughts. But there’s a catch: the system requires a massive, expensive machine and can only work in a highly controlled lab setting.

A new study shows that brain hemorrhages, as well as ischemic strokes, increase the risk of dementia later in life.                      Credit: Shutterstock

Weill Cornell Medicine researchers have found that intracranial hemorrhages, or "brain bleeds" caused by a ruptured blood vessel in the brain, double a person’s risk of developing dementia later in life.

While the connection between dementia and ischemic strokes caused by clots that block blood supply to the brain has received more attention, the new study, published Jan. 30 in Stroke, extends previous findings to hemorrhages. 

We consistently see an elevated risk of dementia, regardless of the type of bleed,” said first author Dr. Samuel Bruce, assistant professor of neurology at Weill Cornell Medicine and a neurologist at NewYork-Presbyterian/Weill Cornell Medical Center. This suggests people who have experienced an intracranial hemorrhage should be regularly screened for cognitive impairment because the results could inform future care decisions for patients and their families.

Using Medicare insurance claims from 2008 to 2018, Dr. Bruce and his colleagues assessed almost 15,000 people who had various types of intracranial hemorrhages, which cause blood to collect in brain tissue or underneath the skull. Hemorrhages can occur after head injuries, but the researchers focused on those that happened spontaneously. They observed a two-fold increase in the incidence of first-ever dementia diagnosis within an average of 5.6 years after an intracranial hemorrhage for these patients, compared with over two million people who did not have a hemorrhage.

The results add to literature from other labs showing that hemorrhages are linked to later cognitive problems. In a study based on medical records in Denmark, for example, 11.5% of people developed dementia after blood vessels ruptured within their brains, about a 2.5-fold increase over the general population. On the other hand, ischemic strokes, typically caused by blood clots, increased the risk of dementia by about 1.7-fold.

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