Brain scams (revisited): a rush of blood to the head

Just when you thought that the neuro-nonsense gang might be retiring to lick their wounds, here's another pretty worrying technical challenge to many of their findings:

Seems that blood flow (the proxy used to indicate activity in a region of the brain) isn't quite so good at indicating brain activity after all

Sorry to be the bearer of bad news again…

PS for those of you who like perusing brain scans, you must visit this flickr group