Recently in Mind / Body Category

Do we have free will? - New Scientist

In 2003, the Archives of Neurology carried a startling clinical report. A middle-aged Virginian man with no history of any misdemeanour began to stash child pornography and sexually molest his 8-year-old stepdaughter. Placed in the court system, his sexual behaviour became increasingly compulsive. Eventually, after repeatedly complaining of headaches and vertigo, he was sent for a brain scan. It showed a large but benign tumour in the frontal area of his brain, invading the septum and hypothalmus - regions known to regulate sexual behaviour.

After removal of the tumour, his sexual interests returned to normal. Months later, his sexual focus on young girls rekindled, and a new scan revealed that bits of tissue missed in the surgery had grown into a sizeable tumour. Surgery once again restored his behavioural profile to "normal"

Neuroskeptic~ The Man With Half A Brain

Roger appears remarkably unconcerned by his condition. He hardly ever complains and, in general, shows little worry for anything in life. Both of his parents and his sister fervently claim that "Roger is always happy," an observation that is consistent with our own impression. Moreover, based on his family's report, Roger is paradoxically happier now than he was before his brain damage. ... His premorbid disposition of being somewhat reserved and introverted has shifted to being outgoing and extroverted...

Or link here to the TED site to see the video and follow the discussions.

New Research Says "Yes" ~ Daily Galaxy

Cold Spring Harbor Laboratory scientists isolated a Zebra Finch, preventing it from learning the songs of its parents (and probably pissing off a bunch of PETA activists). These finches are known to learn their song from elder male relatives, which is why the scientists were surprised to see the same songs emerge from a colony of these utterly isolated birds.

They didn't get it right immediately. The first isolated bird, cut off from its culture, emitted a cacophonous screeching about as melodious as nails being dragged down a pieces of broken blackboard which were, in turn, being dragged down an even larger blackboard. It even tried to teach its kids the same, but they obviously thought "that sucks" (in bird) and made a few improvements. After four generations, the original finch songs reappeared, meaning that either

a) Cultural information can be genetically encoded or
b) Cold Spring Harbor Laboratory has embarrassingly bad sound insulation.

We're going to assume a) for now.

The Science of Decision-Making -- Science Friday Archives

Paper or plastic? Steak or salmon? Stay or go? Every day, we make thousands of decisions, most minor, some major. But how does your brain make the choice? In this hour, we'll take a look at the science of decision making. Can your genes influence split second decisions? And how do your emotions influence the way you decide?

Link to the Podcast of this story from the Science Friday website.

The Good, the Bad and the Intentional - The Psychologist

In 2003, when George Bush and Tony Blair inaugurated the ongoing war in Iraq, both men surely knew that civilian deaths would be one of the costs of the military engagement. But did Bush or Blair intentionally cause these deaths?

How you answer this question is likely to turn on your moral stance towards the war - whether you see it as an immoral violation of international law, or a liberating intervention in an oppressive regime. That's the message emerging from research in the burgeoning field of experimental philosophy, which applies empirical methods to age-old questions such as how the beliefs, desires and intentions behind certain actions affect how others view these actions.

Why is There Peace? -- Great Good Magazine by Stephen Pinker

Over the past century, violent images from World War II concentration camps, Cambodia, Rwanda, Darfur, Iraq, and many other times and places have been seared into our collective consciousness. These images have led to a common belief that technology, centralized nation-states, and modern values have brought about unprecedented violence.

Our seemingly troubled times are routinely contrasted with idyllic images of hunter-gatherer societies, which allegedly lived in a state of harmony with nature and each other. The doctrine of the noble savage--the idea that humans are peaceable by nature and corrupted by modern institutions--pops up frequently in the writing of public intellectuals like, for example, Spanish philosopher José Ortega y Gasset, who argued that "war is not an instinct but an invention."

But now that social scientists have started to count bodies in different historical periods, they have discovered that the romantic theory gets it backward: Far from causing us to become more violent, something in modernity and its cultural institutions has made us nobler. In fact, our ancestors were far more violent than we are today. Indeed, violence has been in decline over long stretches of history, and today we are probably living in the most peaceful moment of our species' time on earth.

Can a machine change your mind? ~ Open Democracy

Hard-line identity theorists, and eliminativists above all, don't appreciate how much they would change things if indeed we could come to believe and implement their theories. Our world would increasingly be leeched of meaning, morality, dignity and freedom, and if we rejected folk psychology in favour of scientific terminology about brain states, not only would we know less, not more, about ourselves; we would also have less to know about, because we would be less.

Don't! ~The New Yorker by Jonah Lehrer

In adults, this skill is often referred to as metacognition, or thinking about thinking, and it's what allows people to outsmart their shortcomings. (When Odysseus had himself tied to the ship's mast, he was using some of the skills of metacognition: knowing he wouldn't be able to resist the Sirens' song, he made it impossible to give in.) Mischel's large data set from various studies allowed him to see that children with a more accurate understanding of the workings of self-control were better able to delay gratification. "What's interesting about four-year-olds is that they're just figuring out the rules of thinking," Mischel says. "The kids who couldn't delay would often have the rules backwards. They would think that the best way to resist the marshmallow is to stare right at it, to keep a close eye on the goal. But that's a terrible idea. If you do that, you're going to ring the bell before I leave the room."

According to Mischel, this view of will power also helps explain why the marshmallow task is such a powerfully predictive test. "If you can deal with hot emotions, then you can study for the S.A.T. instead of watching television," Mischel says. "And you can save more money for retirement. It's not just about marshmallows."

Biologist sees human morality evolving from the sociality of primates - The New York Times

Some animals are surprisingly sensitive to the plight of others. Chimpanzees, who cannot swim, have drowned in zoo moats trying to save others. Given the chance to get food by pulling a chain that would also deliver an electric shock to a companion, rhesus monkeys will starve themselves for several days.

Biologists argue that these and other social behaviors are the precursors of human morality. They further believe that if morality grew out of behavioral rules shaped by evolution, it is for biologists, not philosophers or theologians, to say what these rules are.