LIMA, Ohio & MILPITAS, Calif.--(BUSINESS WIRE)--Jul 25, 2023--

Scientists have revealed they had found a way to combine the technology of brain scans and artificial intelligence to transcribe “the gist” of people’s thoughts. Alex Huth, an assistant professor of neuroscience and computing science at the University of Texas at Austin, and a co-author on the new study published in Nature Neuroscience, said that ‘this is a real leap forward.’ The study was led by Huth and Jerry Tang, a doctoral student in computer science. The main development from this study is that it’s non-invasive. This means that subjects do not require surgical implants. Instead, brain activity is measured using a functional magnetic resonance imaging (fMRI) scanner. Sign up to our free Indy100 weekly newsletter In the study, individuals listened to hours of podcasts in the scanner. Then, given the participant’s consent to have their thoughts decoded, they listened to a new story and the machine-generated corresponding texts from brain activity. It’s not a word-for-word transcript. For example, when an individual heard the phrase ‘I don’t have my driver’s licence yet’, the model decoded the individual’s thoughts to read as ‘she has not even started to learn to drive yet.’ Even when participants thought up their own stories, the machine was able to decode their thoughts still. Tang acknowledged that the advancements made in the study had the potential for negative aftermath. Tang said, ‘we take very seriously the concerns that it could be used for bad purposes and have worked to avoid that.’ They ran tests that highlighted that unless the machine had been trained on an individual’s particular brain activity, it could not decode its thoughts. An individual had to allow for the machine to train their brain activity over a long period of time inside a fMRI scanner for it to work. Researchers also found that it was easy to ‘sabotage’ the machine. Three participants were told to tell a different story in their mind, or count by seven, while listening to one of the podcasts. The study highlights even more development with artificial intelligence, after the popularity of OpenAI’s Chat GPT has sparked debate around the potential of AI. Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings.

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In late September, scientists at NASA and around the world eagerly awaited the arrival of the OSIRIS-REx capsule containing a sample of the asteroid Bennu. The capsule safely landed on Earth on Sunday 24 September in a Utah desert containing a sample of the asteroid Bennu – categorised as one of the two “most hazardous known asteroids”. When the capsule was first opened, it sparked audible gasps from scientists. Since its arrival, NASA has kept its cards fairly close to its chest but a new blog post from the space agency suggests that progress is going slowly for the “best reason” as there is more sample material than they had anticipated. They explained: “The abundance of material found when the science canister lid was removed earlier this week has meant that the process of disassembling the TAGSAM (Touch-and-Go Sample Acquisition Mechanism) head – which holds the bulk of material from the asteroid – is off to a methodical start.” The OSIRIS-REx’s mission took 7 years to complete, with the sample currently being analysed by NASA taken three years ago before making its way down to Earth. Imagery from the moment the sample was taken confirmed to scientists that there would be asteroid material where they found it, but the quantity of dark particles were far more than they had anticipated. “The very best ‘problem’ to have is that there is so much material, it’s taking longer than we expected to collect it,” said deputy OSIRIS-REx curation lead Christopher Snead of NASA’s Johnson Space Center. “There’s a lot of abundant material outside the TAGSAM head that’s interesting in its own right. It’s really spectacular to have all that material there.” In the coming weeks, experts will continue to work through the particles and begin the complex process of carefully disassembling the TAGSAM to reach the bulk of the Bennu sample inside. Sign up to our free Indy100 weekly newsletter Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings.

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