Brain scanners can tell what you're thinking about
New Scientist
http://www.newscientist.com/article/mg20427323.500-brain-scanners-can-tell-what-youre-thinking-about.html
Oct 28, 2009
Using scans of brain activity, researchers can now recreate moving images that volunteers are viewing, and even make educated guesses about what they are remembering. Last week at the Society for Neuroscience meeting, Jack Gallant, a leading "neural decoder" at UC Berkeley and a core member of the UCB/UCSF Graduate Group in Bioengineering, presented one of the field's most impressive results yet.