8 posts tagged with brain by the man of twists and turns.
Displaying 1 through 8 of 8.
Peter Watts: No Brainer.
For decades now, I have been haunted by the grainy, black-and-white x-ray of a human skull. It is alive but empty, with a cavernous fluid-filled space where the brain should be. A thin layer of brain tissue lines that cavity like an amniotic sac. The image hails from a 1980 review article[PDF] in Science: Roger Lewin, the author, reports that the patient in question had “virtually no brain”. But that’s not what scared me; hydrocephalus is nothing new, and it takes more to creep out this ex-biologist than a picture of Ventricles Gone Wild. What scared me was the fact that this virtually brain-free patient had an IQ of 126.[more inside]
Repairing Bad Memories
[Daniela Schiller] explained how recent research, including her own, has shown that memories are not unchanging physical traces in the brain. Instead, they are malleable constructs that may be rebuilt every time they are recalled. The research suggests, she said, that doctors (and psychotherapists) might be able to use this knowledge to help patients block the fearful emotions they experience when recalling a traumatic event, converting chronic sources of debilitating anxiety into benign trips down memory lane. And then Schiller went back to what she had been doing, which was providing a slamming, rhythmic beat on drums and backup vocals for the Amygdaloids(previously), a rock band composed of New York City neuroscientists.[more inside]
Portia is a jumping spider that eats other spiders, through complex layers[PDF] of visual recognition and planned, trial-and-error[PDF, html] movement, even losing sight of it's target. How does a hunter get to be smarter than the prey, while having the same number of neurons, not even as many as a honeybee? Well, that's the interesting part ... [more inside]
Our Inconsistent Ethical Instincts
We like to believe that the principled side of the equation is rooted in deep, reasoned conviction. But a growing wealth of research shows that those values often prove to be finicky, inconsistent intuitions, swayed by ethically irrelevant factors. What you say now you might disagree with in five minutes. And such wavering has implications for both public policy and our personal lives.[more inside]
"Maybe it's a sore point: your field should have an answer (people think you do) but there isn't one yet. Perhaps it's simple to pose but hard to answer. Or it's a question that belies a deep misunderstanding: the best answer is to question the question."
President Obama recently announced a big new effort to map and understand the human brain. [more inside]