Neuroscience for Everyone!

Erin Biba has a great story in the new issue of Wired about the latest DIY movement: do-it-yourself biotech. The feature peeks into the growing universe of “biohackers”–curious science enthusiasts who are finding ways to tinker with genes, brains, and bodies in basements or garages and on shoestring budgets.

One set of subjects, in particular, caught my eye: Greg Gage and Tim Marzullo. The pair,  former neuroscience post-docs who met at the University of Michigan, run a company called Backyard Brains, which provides low-cost equipment that allows students and amateurs to become neuroscientists for a day (or month!). By pure coincidence, I had met the Backyard Brains boys just days before coming across the Wired article. One chapter of my upcoming book is about cyborg animals, and Gage and Marzullo’s latest product is the RoboRoach, a small kit of electronics that allow any interested amateur turn a living cockroach into a remote-controlled toy.

But the company’s first–and most successful–product is a little contraption known as the SpikerBox. On sale for $90, the device allows customers to observe neurons firing in a cockroach in real time. The SpikerBox has electrodes that can pick up on the electrical activity in a roach’s leg; this neural activity can then be transmitted through a speaker, as sound, or to the screen of an attached iPhone, as that characteristic visual pattern of peaks and valleys.

Gage and Marzullo came up with the idea for the SpikerBox–and their company in general–after being frustrated by the high barrier of entry to neuroscience. In some ways, Gage says, neuroscience is the opposite of astronomy, a field that amateurs can really sink their teeth into. You often have to be an advanced undergraduate to even observe the electrical activity of neurons. “It’s the equivalent of only being able to look at the moon through a telescope if you get a PhD in astronomy,” Gage told me.

The pair hopes that by allowing kids and students to really dig in there and interact with the brain–and see and hear–neurons in action, they can inspire new generations of neuroscientists. (The company’s motto, emblazoned on its custom-made circuit boards, and elsewhere, is “Neuroscience for Everyone!”)

The sentiment really resonates with me. For years, I wanted to be a neuroscientist, and I slogged through hours of organic chemistry lab in hopes that one day, I might get to do something like listen in on neurons or hijack an insect’s nervous system. I gave up on neuroscience before I got within miles of a brain. Perhaps, if I’d been able to play around with a SpikerBox, it would have gotten me excited enough about a career in laboratory neuroscience to prompt me to just grit my teeth through all those interminable hours of orgo.

Category: Biotechnology, Citizen Science, Neuroscience | Leave a comment

Small Wonders: Aug. 29, 2011

In this edition: racism and mental illness, a former president’s veganism, and sleeping ostriches.

* Upbringing influences behavior. Plant behavior.

* Are extreme racists mentally ill?

* How butterfly wings could help fight crime.

* The trouble with twin studies.

* Holy chicken fried steak! President Bill Clinton is a vegan.

* Two great pieces on pseudoscience in media coverage of the London riots.

* What scientists can learn from studying “sightings” of mysterious monsters, from Nessie to Yeti.
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Learning to Speak Like a Woman

Back in June, Eliza Gray, a reporter at The New Republic, had a remarkable cover story on transgender rights, which she called  “America’s next great civil rights struggle. (Yes, I know I’m late in covering this, but I’ve been out of commission for most of the summer. And now that I’m back, I don’t want to miss the chance to talk about the story.)

The entire story is remarkable–and eye-opening and gut-wrenching look at the vast struggles still faced by transgendered and transsexual Americans, who have largely been excluded from much of the progress made in the realm of gay rights.

But I am, of course, a science writer, and one part of the story, in particular, really caught my eye. Eliza spent a lot of time with 56-year-old Caroline Temmermand, who is transitioning from male to female. One part of Caroline’s transition, it turns out, involved speech therapy.

…Every week, Caroline also attends voice lessons at a clinic in Washington, D.C. When it comes to vocal adjustment, transitioning male-to-females have a tough time, because estrogen does not make the voice higher. And there is a lot more to speech than hormones. Men speak in monotones, using volume instead of pitch to emphasize different syllables, with their heads perpendicular to their shoulders, while women tilt and move their heads and speak in rising and falling pitches. Male voices originate in the chest, female voices in the throat. This is the difference between a man who speaks in falsetto and a man who learns how to really speak like a woman.

I watched from an observation room as a clinician sat at a computer that monitors pitch and asked Caroline to hold certain vowel sounds for as long as she could. To me, her voice sounded quite feminine, but Caroline was tough on herself: After one assessment, she guessed that her pitch was 145. (Anything between 145 and 165 is considered gender neutral.) The clinician reassured her: The real number was 198, very close to the average range of feminine pitch of 210-220. Caroline then read a passage selected to contain all the sounds in the English language. This time, her average pitch was 177, just above gender neutral. “I still can’t find my voice,” says Caroline, disappointed. She also had work to do on her laugh, her cough, and her sneeze.

I know Eliza socially, and she told me that the story, in fact, began as a piece focused on speech therapy for transgendered people. Ultimately, the story became something broader and more ambitious–and wonderful–but it left me wanting more about the science of speech therapy for people who are transitioning. Eliza has generously agreed to field some questions on the topic. An edited version of our discussion follows.
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Category: Medicine, Men, Psychology, Sex, Women | 8 Comments

Ramadan: Holy month and field experiment

Ramadan, the Islamic holy month during which Muslims fast during daylight hours, began last week. But Ramadan is more than a holiday–it’s also a unique research opportunity. The month provides a large population of people who are fighting against their normal circadian rhythms, eating and being active mostly when it’s dark. Back in 2007, I wrote a story for The Boston Globe about what scientists were learning by studying how the body adjusts to this topsy-turvy month. In honor of Ramadan, here’s a good chunk of that story:

During Ramadan, Muslims eat and get more active just when their bodies are used to winding down, creating sleep disruptions, hormonal changes, and sometimes mood impacts.

“Their biological clocks are no longer in harmony with their watches,” said Yvan Touitou, a chronobiologist at Pierre and Marie Curie University in Paris. “Ramadan is capable of desynchronizing people.”

Touitou’s research has illustrated that Ramadan can alter the usual circadian patterns of cortisol, a stress hormone, and testosterone, with sharper decreases of these hormones in the morning and later rises at night – though the impact of these rhythm disruptions is unclear.

The holiday also changes the schedule of the release of leptin, a hormone that regulates appetite and weight, and decreases the peak levels of melatonin, a hormone released at night to induce sleep. Interestingly, despite the disruption in leptin and in daily eating patterns, Ramadan rarely causes significant changes in body weight. Investigating why this is the case could yield useful insights into human energy metabolism, said Tom Reilly, a sports scientist at Liverpool John Moores University in England who has studied circadian rhythms and Ramadan.
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Category: Medicine, Neuroscience, Psychology | 2 Comments

Animal Photo Extravaganza

Now that I’m writing a book about animals, I get to pretend that perusing cute critter photos online counts as productive work. And I don’t know what’s in the water, but lately, the world’s animal photographers have been churning out some brilliant work. Below, some of my favorite finds:

Elderly Animals

These photographs of creatures nearing the end of their lives are surprisingly moving. (Photographer Isa Leshko has more on her website.)

The Exultant Ark

The New York Times has put together a slideshow of images from the new book The Exultant Ark: A Pictorial Tour of Animal Pleasure. Wired also has an excerpt from the book.

Life in Antarctica

These early 20th century images of Antarctic expeditions include some great shots of penguins, elephant seals, and sled dogs.

Ape Portraits

Volker Gutgesel takes candid shots of the simian residents of the Frankfurt Zoo.

Category: Animals, Images | Leave a comment

Small Wonders: July 13, 2011

In this week’s edition: human echolocation, sex and athletic performance, and ancient medicines discovered on a shipwreck. (I haven’t done one of these in a while, so it’s longer than usual. But hey–more is more, right?)

* An art installation will transform the brain’s reaction to certain cocktails into images.

* The problem with calling some medical procedures “elective” and others “necessary.”

* One lonely penguin turns up on the shores of New Zealand.

* And whales, it turns out, practically surround New York City. They were detected by underwater microphones.

* Garage inventors tackle biotech.

* The Japanese mob is cashing in on disaster relief.

* An exploration of the remarkable phenomenon of human echolocation.

* The science of the hamburger. ‘Nuff said.
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Invasive Species: They’re What’s For Dinner

The New York Times has a story about one of my favorite subjects: the suggestion that we combat invasive species by eating them. The story focuses, in particular, on the lionfish, an improbable looking creature that is taking over tropical reefs in Florida and the Caribbean. But it’s just one of many articles that have appeared about the so-called “invasivore” movement. I would guess that the actual size of the movement is incredibly small, but the topic seems to be a media darling. (Full disclosure: I, myself, have written about this topic. Click here to check out the slideshow I put together for Discover in 2009.)

Here’s just a small sampling of the coverage.

Not only are we all writing the same story over and over again, but many of us are using the exact same seemingly clever phrase: If you can’t beat ‘em, eat ‘em. In fact, I used it in my own story and am now duly embarrassed. In the future, I will strive to avoid such cliches like the plague.

Image: Wikimedia Commons/Christian Mehlführer

Category: Animals, Food, Journalism | 1 Comment

Stem Cell Therapies for Injured Animals

First up in my return to blogging: A link to a story I wrote recently about stem cell therapy in animals.

While much of the hubbub surrounding stem cells is about the potential for curing devastating, life-threatening illnesses or injuries, veterinarians have begun using stem cell therapies to treat more common, everyday ailments–orthopedic problems, such as tendinitis and cartilage degeneration, in particular.

Of course, this is still early days for these interventions, and some of the enthusiasm might be a wee bit ahead of scientific consensus. But encouraging evidence is beginning to trickle out, and the potential human applications are thoroughly exciting. Find out more by reading the full story.

Category: Animals, Medicine | Leave a comment

I’m Back, Baby!

My regular readers may have noticed that I’ve been, well, slacking a bit here lately. And I feel bad about that. I had a major book deadline last Friday, and, for the last two months or so, I had manuscript-writing tunnel vision. But things are about to change. I have, almost miraculously, made my deadline, and so it’s time to return to all those many things I’ve been neglecting. Including this blog. So this is really just a note to say: Never fear. I’m back to blogging. Get ready for some posts.

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High School Guest Post: Why America Doesn’t Pay Attention to Global Warming

Two weeks ago, I wrote about the high school science bloggers in Ms. Baker’s biology classes at Staten Island Academy. Over the next few weeks, I will be publishing several guest posts that have been written by Ms. Baker’s students.

Today’s post comes from 12th-grader Michael, who would like to be a computer engineer. (Note: At Ms. Baker’s request, I am withholding the last names of the students–if you are interested in contacting any of them, Ms. Baker asks that you please get in touch with her at extremebiology@gmail.com.) I have not done any editing–the post, which begins below, is all Taylor’s own work. –EA

Why America Doesn’t Pay Attention to Global Warming
By Michael
12th Grade
Staten Island Academy

“In the summer of 2003, an intense heat wave was blamed for an estimated 35,000 deaths across large swaths of Europe. A study says that global warming has doubled the likelihood of heat waves of this magnitude.” (From NRDC)

Now, I don’t live in Europe, but I certainly do remember that summer. I remember not only how hot it was in America, but also the news talking about all the people who were dying day after day, mostly the elderly, the children, and the homeless. The NRDC brings this memory back, as well as some other past events, to warn us of the dangers of global warming. But why isn’t America paying attention?
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Category: Climate Change, Guest Post, Media | 41 Comments