Health
A.I. Is Getting Better at Mind-Reading
Consider the phrases whirling round in your head: that tasteless joke you correctly saved to your self at dinner; your voiceless impression of your greatest buddy’s new associate. Now think about that somebody might hear in.
On Monday, scientists from the College of Texas, Austin, made one other step in that route. In a examine printed within the journal Nature Neuroscience, the researchers described an A.I. that would translate the personal ideas of human topics by analyzing fMRI scans, which measure the circulation of blood to totally different areas within the mind.
Already, researchers have developed language-decoding strategies to select up the tried speech of people that have misplaced the flexibility to talk, and to permit paralyzed individuals to put in writing whereas simply considering of writing. However the brand new language decoder is without doubt one of the first to not depend on implants. Within the examine, it was capable of flip an individual’s imagined speech into precise speech and, when topics had been proven silent movies, it might generate comparatively correct descriptions of what was occurring onscreen.
“This isn’t only a language stimulus,” mentioned Alexander Huth, a neuroscientist on the college who helped lead the analysis. “We’re getting at that means, one thing concerning the concept of what’s occurring. And the truth that that’s doable may be very thrilling.”
The examine centered on three members, who got here to Dr. Huth’s lab for 16 hours over a number of days to hearken to “The Moth” and different narrative podcasts. As they listened, an fMRI scanner recorded the blood oxygenation ranges in elements of their brains. The researchers then used a big language mannequin to match patterns within the mind exercise to the phrases and phrases that the members had heard.
Giant language fashions like OpenAI’s GPT-4 and Google’s Bard are skilled on huge quantities of writing to foretell the following phrase in a sentence or phrase. Within the course of, the fashions create maps indicating how phrases relate to 1 one other. A number of years in the past, Dr. Huth seen that specific items of those maps — so-called context embeddings, which seize the semantic options, or meanings, of phrases — might be used to foretell how the mind lights up in response to language.
In a fundamental sense, mentioned Shinji Nishimoto, a neuroscientist at Osaka College who was not concerned within the analysis, “mind exercise is a type of encrypted sign, and language fashions present methods to decipher it.”
Of their examine, Dr. Huth and his colleagues successfully reversed the method, utilizing one other A.I. to translate the participant’s fMRI photographs into phrases and phrases. The researchers examined the decoder by having the members hearken to new recordings, then seeing how carefully the interpretation matched the precise transcript.
Virtually each phrase was misplaced within the decoded script, however the that means of the passage was often preserved. Basically, the decoders had been paraphrasing.
Authentic transcript: “I acquired up from the air mattress and pressed my face towards the glass of the bed room window anticipating to see eyes staring again at me however as an alternative solely discovering darkness.”
Decoded from mind exercise: “I simply continued to stroll as much as the window and open the glass I stood on my toes and peered out I didn’t see something and seemed up once more I noticed nothing.”
Whereas below the fMRI scan, the members had been additionally requested to silently think about telling a narrative; afterward, they repeated the story aloud, for reference. Right here, too, the decoding mannequin captured the gist of the unstated model.
Participant’s model: “Search for a message from my spouse saying that she had modified her thoughts and that she was coming again.”
Decoded model: “To see her for some purpose I assumed she would come to me and say she misses me.”
Lastly the themes watched a short, silent animated film, once more whereas present process an fMRI scan. By analyzing their mind exercise, the language mannequin might decode a tough synopsis of what they had been viewing — possibly their inner description of what they had been viewing.
The end result means that the A.I. decoder was capturing not simply phrases but in addition that means. “Language notion is an externally pushed course of, whereas creativeness is an energetic inner course of,” Dr. Nishimoto mentioned. “And the authors confirmed that the mind makes use of frequent representations throughout these processes.”
Greta Tuckute, a neuroscientist on the Massachusetts Institute of Expertise who was not concerned within the analysis, mentioned that was “the high-level query.”
“Can we decode that means from the mind?” she continued. “In some methods they present that, sure, we are able to.”
This language-decoding methodology had limitations, Dr. Huth and his colleagues famous. For one, fMRI scanners are cumbersome and costly. Furthermore, coaching the mannequin is a protracted, tedious course of, and to be efficient it have to be accomplished on people. When the researchers tried to make use of a decoder skilled on one particular person to learn the mind exercise of one other, it failed, suggesting that each mind has distinctive methods of representing that means.
Individuals had been additionally capable of protect their inner monologues, throwing off the decoder by considering of different issues. A.I. may have the ability to learn our minds, however for now it must learn them separately, and with our permission.
Health
Jennifer Hudson Lost 80-Lbs Without Depriving Herself—Learn Her Secrets
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Health
Kennedy’s Plan for the Drug Crisis: A Network of ‘Healing Farms’
Though Mr. Kennedy’s embrace of recovery farms may be novel, the concept stretches back almost a century. In 1935, the government opened the United States Narcotic Farm in Lexington, Ky., to research and treat addiction. Over the years, residents included Chet Baker and William S. Burroughs (who portrayed the institution in his novel, “Junkie: Confessions of an Unredeemed Drug Addict”). The program had high relapse rates and was tainted by drug experiments on human subjects. By 1975, as local treatment centers began to proliferate around the country, the program closed.
In America, therapeutic communities for addiction treatment became popular in the 1960s and ’70s. Some, like Synanon, became notorious for cultlike, abusive environments. There are now perhaps 3,000 worldwide, researchers estimate, including one that Mr. Kennedy has also praised — San Patrignano, an Italian program whose centerpiece is a highly regarded bakery, staffed by residents.
“If we do go down the road of large government-funded therapeutic communities, I’d want to see some oversight to ensure they live up to modern standards,” said Dr. Sabet, who is now president of the Foundation for Drug Policy Solutions. “We should get rid of the false dichotomy, too, between these approaches and medications, since we know they can work together for some people.”
Should Mr. Kennedy be confirmed, his authority to establish healing farms would be uncertain. Building federal treatment farms in “depressed rural areas,” as he said in his documentary, presumably on public land, would hit political and legal roadblocks. Fully legalizing and taxing cannabis to pay for the farms would require congressional action.
In the concluding moments of the documentary, Mr. Kennedy invoked Carl Jung, the Swiss psychiatrist whose views on spirituality influenced Alcoholics Anonymous. Dr. Jung, he said, felt that “people who believed in God got better faster and that their recovery was more durable and enduring than people who didn’t.”
Health
Children exposed to higher fluoride levels found to have lower IQs, study reveals
The debate about the benefits and risks of fluoride is ongoing, as RFK Jr. — incoming President Trump’s pick for HHS secretary — pushes to remove it from the U.S. water supply.
“Fluoride is an industrial waste associated with arthritis, bone fractures, bone cancer, IQ loss, neurodevelopmental disorders and thyroid disease,” RFK wrote in a post on X in November.
A new study published in JAMA Pediatrics on Jan. 6 found another correlation between fluoride exposure and children’s IQs.
RFK JR. CALLS FOR REMOVAL OF FLUORIDE FROM DRINKING WATER, SPARKING DEBATE
Study co-author Kyla Taylor, PhD, who is based in North Carolina, noted that fluoridated water has been used “for decades” to reduce dental cavities and improve oral health.
“However, there is concern that pregnant women and children are getting fluoride from many sources, including drinking water, water-added foods and beverages, teas, toothpaste, floss and mouthwash, and that their total fluoride exposure is too high and may affect fetal, infant and child neurodevelopment,” she told Fox News Digital.
The new research, led by scientists at the National Institute of Environmental Health Sciences (NIEHS), analyzed 74 epidemiological studies on children’s IQ and fluoride exposure.
FEDERAL JUDGE ORDERS EPA FURTHER REGULATE FLUORIDE IN DRINKING WATER DUE TO CONCERNS OVER LOWERED IQ IN KIDS
The studies measured fluoride in drinking water and urine across 10 countries, including Canada, China, Denmark, India, Iran, Mexico, Pakistan, New Zealand, Spain and Taiwan. (None were conducted in the U.S.)
The meta-analysis found a “statistically significant association” between higher fluoride exposure and lower children’s IQ scores, according to Taylor.
“[It showed] that the more fluoride a child is exposed to, the more likely that child’s IQ will be lower than if they were not exposed,” she said.
These results were consistent with six previous meta-analyses, all of which reported the same “statistically significant inverse associations” between fluoride exposure and children’s IQs, Taylor emphasized.
The research found that for every 1mg/L increase in urinary fluoride, there was a 1.63-point decrease in IQ.
‘Safe’ exposure levels
The World Health Organization (WHO) has established 1.5mg/L as the “upper safe limit” of fluoride in drinking water.
“There is concern that pregnant women and children are getting fluoride from many sources.”
Meanwhile, the U.S. Public Health Service recommends a fluoride concentration of 0.7 mg/L in drinking water.
“There was not enough data to determine if 0.7 mg/L of fluoride exposure in drinking water affected children’s IQs,” Taylor noted.
FDA BANS RED FOOD DYE DUE TO POTENTIAL CANCER RISK
Higher levels of the chemical can be found in wells and community water serving nearly three million people in the U.S., the researcher noted.
She encouraged pregnant women and parents of small children to be mindful of their total fluoride intake.
“If their water is fluoridated, they may wish to replace tap water with low-fluoride bottled water, like purified water, and limit exposure from other sources, such as dental products or black tea,” she said.
“Parents can use low-fluoride bottled water to mix with powdered infant formula and limit use of fluoridated toothpaste by young children.”
For more Health articles, visit www.foxnews.com/health.
While the research did not intend to address broader public health implications of water fluoridation in the U.S., Taylor suggested that the findings could help inform future research into the impact of fluoride on children’s health.
Dental health expert shares cautions
In response to this study and other previous research, Dr. Ellie Phillips, DDS, an oral health educator based in Austin, Texas, told Fox News Digital that she does not support water fluoridation.
“I join those who vehemently oppose public water fluoridation, and I question why our water supplies are still fluoridated in the 21st century,” she wrote in an email.
“There are non-fluoridated cities and countries where the public enjoy high levels of oral health, which in some cases appear better than those that are fluoridated.”
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Phillips called the fluoride debate “confusing” even among dentists, as the American Dental Association (ADA) advocates for fluoride use for cavity prevention through water fluoridation, toothpaste and mouthwash — “sometimes in high concentrations.”
“[But] biologic (holistic) dentists generally encourage their patients to fear fluoride and avoid its use entirely, even if their teeth are ravaged by tooth decay,” she said.
“Topical fluoride is beneficial, while systemic consumption poses risks.”
Phillips encouraged the public to consider varying fluoride compounds, the effect of different concentrations and the “extreme difference” between applying fluoride topically and ingesting it.
“Topical fluoride is beneficial, while systemic consumption poses risks,” she cautioned.
“Individuals must take charge of their own oral health using natural and informed strategies.”
The study received funding from the National Institute of Environmental Health Sciences (NIEHS), the National Institutes of Health (NIH) and the Intramural Research Program.
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