She wrote the post a week after the episode, and two weeks before having brain surgery to remove the tumor that caused it.
"At the time I was still having seizures every few days, and just the act of writing about the first seizure in such detail almost brought on another one," Jess explains. "I initially planned to keep this account private, but after two months, I’ve decided to share it, if only for the fact that it might be useful to others who have had or will have a similar experience."
It happened when she was in transit via plane from Yemen to Beirut.
TIL: That what we think of as "pain" is actually two different things. The most basic sense is called nociception — a non-subjective reflex that drives lots of animals to pull away from dangerous things. Pain — actual pain — is what happens after nociception, and different individuals perceive it differently under different situations. So, for example, nociception is why you jerk your hand away from a hot stove. Pain is the feeling that helps you learn not to touch hot stoves again. Oh, and also, crabs might be capable of feeling both. — Maggie
In our own world filled with challenges ranging from cyber-warfare to infrastructure failure, could self-directed play be the best way to prepare ourselves to face them?
In self-directed play, one structures and drives one’s own play. Self-directed play is experiential, voluntary, and guided by one’s curiosity. This is different from play that is guided by an adult or otherwise externally directed.
A MacArthur Fellow told me that, when he was a teenager, his single mother would drop him off at an industrial supply store on Saturdays while she ran errands. Using library books as his primary resource, he built a linear accelerator in the garage. It wasn’t until neighbors complained about scrambled television and radio signals in the hours just after school and after dinner that his “playful” invention was discovered.
The Food and Drug Administration today announced it will require the makers of popular sleeping pills like Ambien and Zolpimist to reduce the recommended dosage in half for women, "after laboratory studies showed that the medicines can leave patients drowsy in the morning and at risk for car accidents." Women eliminate the drugs from their bodies more slowly than men. (NYT)— Xeni
ABC News reports that a team of scientists who analyzed the brain tissue of the late NFL star Junior Seau after his 2012 suicide "have concluded the football player suffered a debilitating brain disease likely caused by two decades worth of hits to the head." — Xeni
Here's a fun fact: Did you know that you can get tapeworms in your brain? You know that you can get a tapeworm from eating infected meat. But when people have tapeworms in their guts, they secrete tens of thousands of eggs a day. And those eggs can end up on food, or other things that people put into their mouths. For some reason—nobody is really sure why—tapeworm eggs that are ingested by humans never mature into adults. Instead, they remain in a larval stage and hang out in a host's bloodstream. Sometimes, they make it to the brain. And, apparently, this happens often enough that it has an actual medical name: Neurocysticercosis.
The good news is that these things are mostly harmless. They don't seem to hurt your brain at all while they're alive. The bad news: As soon as the larvae die, your body's immune system seems to suddenly realize they exist and it goes into overdrive—triggering seizures, loss of feeling in the body, and sometimes leading to death.
Scientific American blogs has the story of one woman in California who had this happen to her. To save her life, surgeons had to remove a calcified tapeworm larva from her brain.
Sara Alvarez was afraid.
It was December 20, 2010, in Sunnyvale, Calif., a town that lives up to its name. The West Coast winter, not as long or as harsh as seasons in the East, gave her the opportunity to take her youngest child out for an afternoon stroll.
In the fading light of dusk, Alvarez, too, began to fade. She lost the feeling in her right leg. Her right foot followed suit. She couldn’t lift or move her right hand. She was weak, and her body was numb.
The National Institutes of Health classifies neurocysticercosis as the leading cause of epilepsy worldwide, and the World Health Organization (WHO) estimates that tapeworms infect 50 million people globally. The CDC says an estimated 1,900 people are diagnosed with neurocysticercosis within the United States yearly.
There's a feature worth reading in the New York Times today by John Hanc on the role that meditation plays in brain development, and scientific studies to explore "the extent to which meditation may affect neuroplasticity — the ability of the brain to make physiological change." — Xeni
While they were both in the psychology department of Stony Brook University, Bianca Acevedo and Arthur Aron scanned the brains of long-married couples who described themselves as still “madly in love.” Staring at a picture of a spouse lit up their reward centers as expected; the same happened with those newly in love (and also with cocaine users). But, in contrast to new sweethearts and cocaine addicts, long-married couples displayed calm in sites associated with fear and anxiety. Also, in the opiate-rich sites linked to pleasure and pain relief, and those affiliated with maternal love, the home fires glowed brightly.
Turns out, we like food porn for the same reason we like such things as the art of Tom of Finland and certain parts of Dolly Parton. There's a big connection between the way we're attracted to exaggerated sexual characteristics, and the way we're attracted to exaggerated food characteristics.
Pioneered in field studies by the ethologists Tinbergen and Lorenz, supernormal stimuli is any phenomenon in which the features of an object — be it a parent, mate, or food — are exaggerated to make an animal respond more strongly to them. In her 2010 book Supernormal stimuli: how primal urges overran their evolutionary purpose, Deirdre Barrett explored the ways in which movie makers, advertisers and fast food companies exaggerate the parts of things we already like in order to hijack our emotions and cravings.
Baby chicks presented with parents with exaggerated versions of the features they’re homing in on — the color of a parent’s beak, say — will respond more strongly to an exaggerated, but artificial, version of their parent than to the real thing. In the same way, humans home in on versions of reality in which the most enticing features are enhanced. In food, that’s texture, color, and anything else we associate with nutrient density, mouth feel and general deliciousness.
That video might not actually be safe for work, by the way.Video Link
... In the last decade, researchers have learned about receptors in the nerves under our skin that react specifically to itchy substances. When these receptors fire, they send a signal racing up our spinal cord, headed to our brain where it creates an urge to scratch. Scientists now have a basic map of the roads that an itch takes on its way to our brain. And they have even been able to block some of these roads in mice, essentially preventing them from feeling an itch.
...The picture that is emerging is a complex one, where pain and itch signals are distinct yet subtly intertwined. Of the nerve cells under our skin, some are involved only in signalling pain, and they have pain receptors. Others are responsible for signalling different types of itches, and they have both itch and pain receptors. If the same cell has both receptors, how do we distinguish itch from ouch?
... As the biology of itching becomes better understood, the benefits are making their way from the lab to the clinic. The drug morphine is a powerful painkiller, but has a common side effect of itchiness. Women taking opiates to relieve their labour pain often experience a similar side effect. Zhou-Feng Chen and Yan-Gang Sun, authors of the GRPR receptor study, teamed up with colleagues at the newly founded Center for the Study of Itch and managed to tackle this problem. Their results, published in the current issue of the journal Cell, show that the benefits of morphine can be separated from the itch.