Hypnosis found to alter the brain: Subjects see color where none exists

People have been hypnotized to see color where only shades of gray exist, and to see gray when actually looking at brightly colored rectangles.

This long Harvard Gazette article covers a hypnosis experiment conducted by Harvard researchers. It's interesting, but it reads a little too much like a press release / student-written article to me. According to the article, some study data " clearly show that hypnosis can change the state of the brain." Unfortunately, the sample size in the study was quite small.