links for 2010-05-21

"Yet, a big question mark has been hanging over the validity of the technique for over a year and, furthermore, the way in which fMRI data are interpreted has also been called into question..Using a novel combination of fMRI and a recently developed state-of-the-art technique called optogenetics, researchers now provide the first direct evidence that the fMRI signal is a valid measure of brain activity."

It's not really surprising there's no catharsis from violent video games – catharsis is entirely ineffective for anger.

The Story of Andrew Wakefield, in comic form.