Archive for September, 2009

Wednesday, September 16th, 2009

Experts say “popping” kids can do more harm than good. A new study of more than 2, 500 toddlers from low-income families found that spanking may have detrimental effects on behavior and mental development.


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Tuesday, September 8th, 2009

From: http://www.newscientist.com/article/mg18524911.600-13-things-that-do-not-make-sense.html?full=true

Don’t try this at home. Several times a day, for several days, you induce pain in someone. You control the pain with morphine until the final day of the experiment, when you replace the morphine with saline solution. Guess what? The saline takes the pain away.

This is the placebo effect: somehow, sometimes, a whole lot of nothing can be very powerful. Except it’s not quite nothing. When Fabrizio Benedetti of the University of Turin in Italy carried out the above experiment, he added a final twist by adding naloxone, a drug that blocks the effects of morphine, to the saline. The shocking result? The pain-relieving power of saline solution disappeared.

So what is going on? Doctors have known about the placebo effect for decades, and the naloxone result seems to show that the placebo effect is somehow biochemical. But apart from that, we simply don’t know.

Benedetti has since shown that a saline placebo can also reduce tremors and muscle stiffness in people with Parkinson’s disease. He and his team measured the activity of neurons in the patients’ brains as they administered the saline. They found that individual neurons in the subthalamic nucleus (a common target for surgical attempts to relieve Parkinson’s symptoms) began to fire less often when the saline was given, and with fewer “bursts” of firing – another feature associated with Parkinson’s. The neuron activity decreased at the same time as the symptoms improved: the saline was definitely doing something.

We have a lot to learn about what is happening here, Benedetti says, but one thing is clear: the mind can affect the body’s biochemistry. “The relationship between expectation and therapeutic outcome is a wonderful model to understand mind-body interaction, ” he says. Researchers now need to identify when and where placebo works. There may be diseases in which it has no effect. There may be a common mechanism in different illnesses. As yet, we just don’t know.

Average Rating: 5 out of 5 based on 273 user reviews.

Tuesday, September 1st, 2009

Taming The Wild Horse:
A Talk On Moving From Fear and Agression To Calm In Daily Life with Michael Gordon
Sept. 3rd 7pm

Sponsored by Awake In Action, a program of the Vancouver Shambhala Centre.
Vancouver Shambhala Center
3275 Heather Street
Vancouver, BC

Average Rating: 4.7 out of 5 based on 292 user reviews.