Brain and cognitive sciences

Prof. Evelina Fedorenko speaks with Scientific American reporter Gary Stix about her research demonstrating that “language and thought are, in fact, distinct entities that the brain processes separately.” Speaking about how large language models could be used to help scientists better understand the neuroscience of how language works, Fedorenko explains that "there are many, many questions that we can now ask that had been totally out of reach: for example, questions about [language] development.”

Prof. David Rand speaks with Scientific American reporter Ben Guarino about why misinformation can spread so easily following a natural disaster like Hurricane Helene. “Disasters are ripe for conspiracy theories because there is a lot of uncertainty as things are unfolding and a lot of fear,” explains Rand. 

Researchers at MIT have developed GenSQL, a new generative AI system that can be used “to ease answering data science questions,” reports Allison Proffitt for Bio-It World. “Look how much better data science could be if it was easier to use,” says Research Scientist Mathieu Huot. “It’s not perfect yet, but we believe it’s quite an improvement over other options.” 

Researchers at MIT and elsewhere have found that “patients who used medical cannabis for a year didn’t see any negative effect on their memory, reward processing and impulse control,” report Erin Schumaker, Daniel Payne, Carmen Paun and Ruth Reader for Politico. “The researchers call for further study with more diverse subjects and a more careful examination of whether certain product types or dosages impact cognitive processes,” they explain.

A study by researchers at MIT and elsewhere has found that both lawyers and non-lawyers use legalese when asked to write about laws, reports June Casagrande for The Los Angeles Times. The "researchers tested the hypothesis by asking 200 participants to write laws prohibiting crimes like drunk driving and burglary,” explains Casagrande. “Then they asked them to write stories about those crimes. The laws they wrote contained unnecessarily long, labyrinthine sentences with lots of parenthetical explanations crammed in. The stories, however, were written simply, without the parenthetical information stuffing.” 

Prof. Nancy Kanwisher has been named a recipient of the 2024 Champalimaud Foundation’s Vision Award, reports the Associated Press. The award highlights the collective work of four researchers who have “driven significant progress in the field of visual neuroscience." 

Researchers at MIT have uncovered a possible reason why legal documents can be so difficult to read, finding that “convoluted legalese often acts as a way to convey authority,” reports Joe Berkowitz for Fast Company. The researchers “tested whether nonlawyers would end up using legalese if asked to write legal documents,” explains Berkowitz. “In the end, all subjects wrote their laws with complex, center-embedded clauses.”

Researchers at MIT have found that the use of legalese in writing “to assert authority over those less versed in such language,” reports Noor Al-Sibai for Futurism. “By studying this cryptic take on the English language, the researchers are hoping to make legal documents much easier to read in the future,” explains Al-Sibai.

Research Scientist Mathieu Huot speaks with Tech Briefs reporter Andrew Corselli about his work with GenSQL, a generative AI system for databases that “could help users make predictions, detect anomalies, guess missing values, fix errors, or generate synthetic data with just a few keystrokes.” 

Prof. Li-Huei Tsai, director of the Picower Institute, speaks with NPR host Jon Hamilton about her work identifying a protein called reelin that appears to protect brain cells from Alzheimer's. “Tsai says she and her team are now using artificial intelligence to help find a drug that can replicate what reelin does naturally,” says Hamilton. 

MIT researchers have discovered how propofol, a commonly used anesthetic, works on the brain, reports Francesca Benson for IFL Science. The research studied “the differences between an awake brain and one under anesthesia by looking at the stability of the brain’s activity,” writes Bensen. 

MIT scientists have discovered how propofol, a commonly used anesthetic, induces unconsciousness, reports Adam Kovac for Gizmodo. “The new research indicates that [propofol] works by interfering with a brain’s ‘dynamic stability’ – a state where neurons can respond to input, but the brain is able to keep them from getting too excited,” explains Kovac. 

Prof. David Rand speaks with New York Times reporters Tiffany Hsu and Stuart A. Thompson about the challenges of stopping the spread of misinformation. “It seems like an easy enough problem: there’s the true stuff and there’s the false stuff, and if the platforms cared about it, they would just get rid of the false stuff,” says Rand. “Then we started working on it and it was like, ‘Oh God.’ It’s actually way more complicated.”

MIT scientists studying parrots have discovered higher intelligence than previously thought, with some birds besting five-year-old children at logic games. With a tablet computer, parrots “have even figured out how to communicate using modern video conferencing technology,” writes Mack DeGeurin for Popular Science. When shown pictures of other parrots they had previously chatted with, “the parrots repeatedly requested to chat with their long-distance friends.”

Prof. Evelina Fedorenko has uncovered evidence that the human brain uses language for communicating, not reasoning, writes Carl Zimmer for The New York Times. “Other regions in the brain are working really hard when you’re doing all these forms of thinking, but it became clear that none of those things seem to engage language circuits,” she says.