Neuroscientist have attached an electronic "backpack" to dragonflies that jack into the insect's brain and wirelessly transmit the data back to a base station. Howard Hughes Medical Institute researcher Anthony Leonardo and his collaborators hope the telemetry will deepen our understanding of how dragonflies target and catch their pray. (via Wired)
In 1961, Mel Blanc, the voice of Bugs Bunny, Porky Pig, Barney Rubble, and literally a thousand other cartoon characters (see vide above), was in a terrible car crash that put him in a coma. Nothing could rouse him until his surgeon addressed him as Bugs Bunny. Of course, Blanc's response was: "What's up, Doc?" Here's a 2012 short episode of Radiolab where they interview the surgeon, a neuroscientist, and Mel Blanc's son, Noel.
"What's Up, Doc?" (Radiolab)
I have a personal Facebook account, which I use to keep up with friends and family. Like many of you, I've also discovered that this gives me a peek inside the psyche of those friends and family — and one of the things that I saw was an interest (and sometimes belief in) conspiracy theories. It wasn't limited to the Right or the Left. And it definitely wasn't limited to people I love but consider a little "off", if you know what I'm saying.* Over and over, I saw perfectly rational, sane people, supporting and spreading ideas that, to me, seemed a little nuts.
And that made me curious: Where do conspiracy theories come from? The answer, according to psychologists and sociologists, is not "Glenn Beck's fevered imagination." In fact, the category "people who believe in conspiracy theories" can't even really be separated into The Other in a nice, neat way. If you look at the data, the people who believe in conspiracy theories are us. And those theories grow out of both historical context, our feelings about ourselves and the wider world, and the way that our brains respond to feelings of powerlessness and uncertainty. Here's a short excerpt from my most recent column for The New York Times Magazine:
While psychologists can’t know exactly what goes on inside our heads, they have, through surveys and laboratory studies, come up with a set of traits that correlate well with conspiracy belief. In 2010, Swami and a co-author summarized this research in The Psychologist, a scientific journal. They found, perhaps surprisingly, that believers are more likely to be cynical about the world in general and politics in particular. Conspiracy theories also seem to be more compelling to those with low self-worth, especially with regard to their sense of agency in the world at large. Conspiracy theories appear to be a way of reacting to uncertainty and powerlessness.
Economic recessions, terrorist attacks and natural disasters are massive, looming threats, but we have little power over when they occur or how or what happens afterward. In these moments of powerlessness and uncertainty, a part of the brain called the amygdala kicks into action. Paul Whalen, a scientist at Dartmouth College who studies the amygdala, says it doesn’t exactly do anything on its own. Instead, the amygdala jump-starts the rest of the brain into analytical overdrive — prompting repeated reassessments of information in an attempt to create a coherent and understandable narrative, to understand what just happened, what threats still exist and what should be done now. This may be a useful way to understand how, writ large, the brain’s capacity for generating new narratives after shocking events can contribute to so much paranoia in this country.
*This joke is totally going to get me into trouble. Dear friends and family: Trust me, you are not the one I'm referring to here.
I've written before about Moran Cerf -- celebrated neuroscientist, former military hacker, and good-guy bank robber -- who also happens to be a great storyteller. Here's a video in which Cerf recounts some clever and fascinating neuroscience experiments that use neurofeedback to help people resolve competition between different thoughts and wills in their minds. The applications are even more interesting -- mentally controlling a robotic arm, for example.
Moran Cerf: Hacking the brain (Thanks, Moran!)
At an age when some people are struggling with their own memories (and many others are just plain dead) neuroscientist Brenda Milner does an amazing job of explaining her contributions to our understanding of how memory works. Milner is one of the researchers who worked with H.M., the famous patient who lost his ability to form new memories after undergoing brain surgery.
This is a long talk — almost an hour — but it's a fascinating look at the career of a scientist who changed the way we think about the mind, told in her own words.
This review also appears on Download the Universe, a group blog reviewing the best (and worst, and just "meh") in science-related ebooks and apps.
When I go to science museums, I like to press the buttons. I'm convinced this is a special joy that you just do not grow out of. Hit the button. See something cool happen. Feel the little reward centers of your brain dance the watusi.
But, as a curmudgeonly grown-up, I also often feel like there is something missing from this experience. There have definitely been times when I've had my button-pushing fun and gotten a few yards away from the exhibit before I've had to stop and think, "Wait, did I just learn anything?"
Science museums are chaotic. They're loud. They're usually full of small children. Your brain is pulled in multiple directions by sights, sounds, and the knowledge that there are about 15 people behind you, all waiting for their turn to press the button, too. In fact, research has shown that adults often avoid science museums (and assume those places aren't "for them") precisely because of those factors. Sound Uncovered is an interactive ebook published by The Exploratorium, the granddaddy of modern science museums. Really more of an app, it's a series of 12 modules that allow you to play with auditory illusions and unfamiliar sounds as you learn about how the human brain interprets what it hears, and how those ear-brain interactions are used for everything from selling cars to making music.
Read the rest
Many years ago I watched a standup comic on television explain that the President of the United States has no more control over the country than the bulldog hood ornament on a Mack Truck has in controlling where the truck goes. He was exaggerating but he had a point.
Neuroscientist David Eagleman has a similar argument about the human brain. Our conscious brain (our "I") is the tiny chrome bulldog, while our non-conscious brain is doing the driving. His highly-readable pop science book, Incognito: The Secret Lives of the Brain, offers dozens of persuasive examples to support the idea that our conscious brain is at the tip of our behavioral iceberg.
Here's a few questions Eagleman asks in Incognito:
Why can your foot jump halfway to the brake pedal before you become consciously aware of danger ahead? Why do strippers make more money at certain times of month, even while no one is consciously aware of their fertility level? Is there a true Mel Gibson? What do Odysseus and the subprime mortgage meltdown have in common? How is your brain like a conflicted democracy engaged in civil war? Why are people whose name begins with J more likely to marry other people whose name begins with J? Why is it so difficult to keep a secret? Why did Supreme Court Justice William Douglas deny that he was paralyzed?
Eagleman's answer to all of these questions is that the non-conscious brain is made up of many signal processors, honed by eons of evolution, that compete and cooperate with each other to make decisions that eventually make their way to the tip of the cognitive iceberg, where the "I" takes credit.
I think Eagleman is probably right, but I'm also the kind of person who is easily persuaded by attractively presented arguments and Eagleman, who is an accomplished fiction writer (see Sum: Forty Tales from the Afterlives) is a good story teller, so that has to be figured into my feeling that he's onto something. In any case, this was one of the most entertaining books about the brain that I've read.