Brain and cognitive sciences

A new working paper by researchers from MIT and Yale finds that “80 percent of Americans think social media companies should take action to reduce the spread of misinformation,” reports Rachel Kraus for Mashable. “Our data suggests [Musk’s views] are not representative,” says Prof. David Rand. "A lot of people in Silicon Valley have this kind of maybe libertarian, extreme free speech orientation that I don't think is in line with actually how most Americans and social media platform users think about things."

Prof. Evelina Fedorenko is studying a woman whose brain does not have a left temporal lobe in an effort to understand how the brain regions thought to play a role in language learning and comprehension develop. “Because EG’s left temporal lobe is missing, Fedorenko’s team had a chance to answer an interesting question: are the temporal regions a prerequisite for setting up the frontal language areas?” writes Grace Browne for Wired. 

CSAIL researchers have developed a new technique that could enable robots to handle squishy objects like pizza dough, reports Brian Heater for TechCrunch.  “The system is separated into a two-step process, in which the robot must first determine the task and then execute it using a tool like a rolling pin,” writes Heater. “The system, DiffSkill, involves teaching robots complex tasks in simulations.”

In an article for The New York Times exploring whether humans are the only species able to comprehend geometry, Siobhan Roberts spotlights Prof. Josh Tenenbaum’s approach to exploring how humans can extract so much information from minimal data, time, and energy. “Instead of being inspired by simple mathematical ideas of what a neuron does, it’s inspired by simple mathematical ideas of what thinking is,” says Tenenbaum.

Boston Globe reporter Kevin Lewis spotlights a new study by MIT researchers that explores why it is often so difficult to comprehend the language in legal contracts. “In other words, what sets lawyers apart from laypeople is not necessarily their greater familiarity with legal concepts,” writes Lewis. “It’s that they’ve been trained in how to handle such esoteric language.”

Smithsonian Magazine reporter Margaret Osborne spotlights MIT researchers who have discovered that specific neurons in the brain respond to singing, but not sounds such as road traffic, instrumental music and speaking. “This work suggests there’s a distinction in the brain between instrumental music and vocal music,” says former MIT postdoc Sam Norman-Haignere.

STAT reporter Faye Flam spotlights research from Prof. David Rand, University of Regina Prof. Gordon Pennycook and their colleagues that shows people “really want to share accurate information but give into the temptation to share juicy bits of gossip they think will please their friends or that make them look good.”

Prof. David Rand and Prof. Gordon Pennycook of the University of Regina in Canada found that people improved the accuracy of their social media posts when asked to rate the accuracy of the headline first, reports Faye Flam for Bloomberg. “It’s not necessarily that [users] don’t care about accuracy. But instead, it’s that the social media context just distracts them, and they forget to think about whether it’s accurate or not before they decide to share it,” says Rand.

Prof. Mircea Dincǎ, Prof. Evelyn Ning-Yi Wang, Prof. Ian W. Hunter, Prof. Guoping Feng, and Senior Research Scientist David H. Shoemaker were elected as Fellows of AAAS for their efforts on behalf of the advancement of science and its applications to better serve society, reports Science.

A new study by MIT researchers provides evidence that babies and toddlers understand people have a close relationship if they are willing to share saliva via sharing food or kissing, reports Nell Greenfieldboyce for NPR. "From a really young age, without much experience at all with these things, infants are able to understand not only who is connected but how they are connected," says postdoc Ashley Thomas. "They are able to distinguish between different kinds of cooperative relationships."

MIT scientists have discovered that infants use saliva sharing as a cue in distinguishing close relationships, reports Andrew Joseph for STAT. “Saliva-sharing interactions provide externally observable cues of thick relationships, and young humans can use these cues to make predictions about subsequent social interactions,” the researchers explain.

Science reporter Bridget Alex spotlights a new study by MIT researchers that finds children as young as 8-months-old can infer the social significance in swapping saliva with those they are closely bonded with. This is a “big step in this new science of what preverbal infants already know about human sociality,” explains Prof. Alan Fiske of the University of California, Los Angeles.

USA Today reporter Karen Weintraub spotlights Prof. Li-Huei Tsai’s work studying a potential new approach to treating Alzheimer's disease and “whether certain tones of sound and frequencies of light can help regulate brain waves and help clear our cellular trash, including toxic proteins.” Tsai explains that: “The major difference between this approach and all other approaches is that this approach doesn’t just target one molecule or one pathway or one cell type. This is a holistic approach to take care of the whole system.”

STAT reporter Megan Molteni writes that a new study by MIT researchers finds that senescent cells, which are linked to aging, may potentially be a cause of Down syndrome. “We hope it opens up new avenues for how we look at Down syndrome — that there seems to be this whole other element that plays on a different timeline that we really need to explore more.”

Boston Globe reporter Kevin Lewis spotlights how MIT researchers surveyed thousands of Democrats and Republicans to rate the reliability of nonpolitical news headlines. “People genuinely believe that opposing partisans are more gullible, even when that stereotype is costly to them,” writes Lewis. “On the other hand, that stereotype can be corrected with evidence.”