Behavior

Researchers from MIT and elsewhere have used quantitative and computational methods to analyze animal communication, reports Emily Anthes for The New York Times.

MIT researchers have used advancements in machine learning and computing to help decode whale vocalizations, reports Sarah Kuta of Smithsonian Magazine. “If researchers knew what sperm whales were saying, they might be able to come up with more targeted approaches to protecting them,” Kuta explains. “In addition, drawing parallels between whales and humans via language might help engage the broader public in conservation efforts.”

A new analysis of years of vocalizations by sperm whales in the eastern Caribbean has provided a fuller understanding of how whales communicate using codas, reports Will Dunham of Reuters. Graduate student Pratyusha Sharma explained that: "The research shows that the expressivity of sperm whale calls is much larger than previously thought."

New Scientist reporter Clare Wilson writes that a new analysis by MIT researchers of thousands of exchanges made by east Caribbean sperm whales demonstrates a communication system more advanced than previously thought. “It’s really extraordinary to see the possibility of another species on this planet having the capacity for communication,” says Prof. Daniela Rus.

Researchers from MIT and elsewhere have uncovered a phonetic alphabet used by sperm whales, which provides “key breakthroughs in our understanding of cetacean communication,” reports Brain Heater for TechCrunch. “This phonetic alphabet makes it possible to systematically explain the observed variability in the coda structure,” says Prof. Daniela Rus, director of CSAIL. “We believe that it’s possible that this is the first instance outside of human language where a communication provides an example of the linguistic concept of duality of patterning. That refers to a set of individually meaningless elements that can be combined to form larger meaningful units, sort of like combining syllables into words.”

Associated Press reporter Maria Cheng spotlights a new study by MIT researchers that identifies a “phonetic alphabet” used by whales when communicating. “It doesn’t appear that they have a fixed set of codas,” says graduate student Pratyusha Sharma. “That gives the whales access to a much larger communication system.” 

Using machine learning, MIT researchers have discovered that sperm whales use “a bigger lexicon of sound patterns” that indicates a far more complex communication style than previously thought, reports Lauren Sommers for NPR. “Our results show there is much more complexity than previously believed and this is challenging the current state of the art or state of beliefs about the animal world," says Prof. Daniela Rus, director of CSAIL. 

MIT researchers have discovered that sperm whales use a “much richer set of sounds than previously known, which they call a ‘sperm whale phonetic alphabet,’” reports Carl Zimmer for The New York Times. “The researchers identified 156 different codas, each with distinct combinations of tempo, rhythm, rubato and ornamentation,” Zimmer explains. “This variation is strikingly similar to the way humans combine movements in our lips and tongue to produce a set of phonetic sounds.”

Researchers at MIT and elsewhere have investigated “how several species of parrots interacted when placed on brief video calls with one another,” reports Mack Degeurin for Popular Science. “The results were shocking,” explains Degeurin. “In almost all cases, the birds’ caretakers claim the video calls improved their well-being. Some of the birds even appeared to learn new skills, like foraging or improved flight, after observing other birds doing so.”

Prof. Earl K. Miller speaks with CBS News host Susan Spencer about  multitasking, fear of laziness, and the importance of downtime. “A lot of times some of your best thoughts come to you when your conscious mind is out of the way, when you allow the unconscious thoughts to bubble up,” says Miller. “And sometimes it’s good to be lazy – not lazy, but to tune out a bit and let these thoughts bubble up.” 

 Joseph Coughlin, director of the MIT AgeLab, speaks with PRX’s On Shifting Ground podcast host Ray Suarez about the potential impacts of greater life expectancy. “You are going to see a lot more technology in old age,” says Coughlin. “Not simply to remind you to take your meds or take your blood pressure, but actually to enable you to stay in your home longer, to bring information to you, to make things more convenient.”

Prof. Kieran Setiya speaks Sean Illing, host of Vox’s The Gray Area podcast, about how philosophy can be used as a tool when handling midlife crises. “There’s a real continuity between the literary and human description of phenomena like grief and philosophical reflection,” says Setiya. “Because often what philosophical reflection provides is less a proof that you should live this way and more concepts with which to articulate your experience and then structure and guide how you relate to reality. And seen that way, we can understand how philosophy can operate as self-help.”

Prof. Amy Finkelstein speaks with New York Times reporter Sarah Kliff about “the impact of medical debt relief on individuals.” “The idea that maybe we could get rid of medical debt, and it wouldn’t cost that much money but it would make a big difference, was appealing,” says Finkelstein. “What we learned, unfortunately, is that it doesn’t look like it has much of an impact.”

Writing for The Next Big Idea Club, Prof. Tali Sharot and Harvard Law School Professor Cass Sunstein cite their new book “Look Again: The Power of Noticing What Was Always There,” to share five insights on how to incorporate more joy into life. “If you need to complete an unpleasant task (household chores, administrative work) complete them in one go,” they write. “Habituation will help you motor through the yukky bits of life, making them feel less unpleasant. Swallow the bad whole but insert short breaks into pleasant experiences to increase pleasure.”

Bloomberg reporter Boyan Ivanchev spotlights research by Prof. Drazen Prelec and Prof. Duncan Simester that finds, “credit card buyers were willing to pay over 100% more for tickets, due to the behavioral pattern that psychologically causes the credit card buyer to perceive the purchase as a type of deferred payment, and therefore, not immediately feel the psychological discomfort, as when letting this amount go when paying cash.”