Aging and damaged brain cells, or neurons, can cause memory problems and limit the brain's ability to recover from illnesses. Some scientists have posited that if we could just turn on the ability to make new neurons in the brain—a process called neurogenesis—some of these deleterious changes might be reversed.
Galen Buckwalter, a 69-year-old research psychologist and quadriplegic, participated in a brain implant study to contribute to science that aids those with paralysis. The six chips in his brain decode movement intention, allowing him to operate a computer and feel sensations in his fingers again.
Our eyes—which we usually think of as purely visual organs—spontaneously dance to the rhythm of what we hear, says study co-author Du Yi, a cognitive neuroscientist at the Chinese Academy of Sciences in Beijing. Using a high-speed eye-tracking system, Du and her team were stunned to discover nonmusicians instinctively blinking in sync with the beat structure of Bach chorales.
Previous research has shown that people feel better in bird-rich environments, but Christoph Randler, from the University of Tubingen, and colleagues wanted to see if that warm fuzzy feeling translated into measurable physiological changes. They rigged up a park with loudspeakers playing the songs of rare birds and measured the blood pressure, heart rate and cortisol levels (a marker of stress) of volunteers before and after taking a 30-minute walk through the park.
The sound stopped suddenly. I wanted to use my right foot to hit the drum twice, but I ended with the first try. At that instant, my brain really drew a blank. I thought, 'What's going on?' This was Yamaguchi's recollection of the first symptoms of musician's dystonia that appeared during a concert in 2009, marking the beginning of his five-year journey to diagnosis.
The list of feats Andrew Schulz has witnessed an elephant perform with its trunk is as long as, well, an elephant's trunk. These powerful proboscises are strong enough to push over 900 pound trees and gentle enough to pick up a tortilla chip without breaking it. They can snuffle along the ground to sense vibrations from far-off herd movements. They can be used to solve puzzles, peel bananas, craft tools, console a fellow pachyderm or a human friend.
Wooden spoons as microphones, siblings spinning in socks across the floor, a mother laughing as Whitney Houston's "I Wanna Dance With Somebody" fills the room for the third time in a row-this is love. Long before children understand romance, they learn connection this way, through synchronized movement, shared joy, and the safety of familiar songs. Research on rhythm and social bonding suggests that moving in time together can regulate the nervous system and strengthen feelings of connection.
'Orcas are psychos,' quipped a close friend recently. He wasn't joking, nor was he ill-informed. In fact, he is probably the world's leading historian of whales and people. He had just watched a BBC Earth clip, narrated by David Attenborough, in which three killer whales separate a male humpback calf from his mother in the waters of Western Australia. The video's closing footage, with two of the orcas escorting the naive youngster to his imminent death, resembles nothing so much as a kidnapping:
Bats are impressive navigators. Like so many mini submarines equipped with sonar, they deftly navigate dark forests and caves by listening for the echoes of their own calls. But how bats can tell which echo to follow while flitting around in a sea of overlapping and competing signals pinging off the myriad surfaces in their environments has been a mysteryuntil now.
February heralds skunk mating season, and our striped friends have romance on their minds. Over the next several weeks, skunks will be seeking mates, and this activity always results in an uptick in the amount of skunk spray in the air. Male skunks spray each other when they fight over females, and females spray males they don't want as mates.
Recently, two unexpected examples by a wild wolf and a domesticated cow named Veronika attracted global attention and once again opened the door for experts and others to weigh in on the question, "Are these really examples of tooling?" Many people are eager to know more about the nitty-gritty details of tooling, so I am thrilled that Dr. Benjamin Beck, an expert in this area, could answer a few questions about this fascinating behavior.
An elephant's trunk is a marvelous thing, flexible enough to bend and stretch as it forages for food, but also stiff enough to grasp and maneuver even delicate objects like peanuts or a tortilla chip. That's because the trunk is highly sensitive when it comes to sensing touch. Scientists have determined that the whiskers lining the trunk are crucial for that sensitivity thanks to their unique structure, amounting to a kind of innate "material intelligence, according to a new paper published in the journal Science.