Not quite. Placebo response: "I think this will make me better, so I get (or feel) better" Nocebo response: "I think this will make me sick, so I get sick"

Interesting (if somewhat anecdotal) article on the nocebo response in relation to voodoo hexes, etc: http://www.newscientist.com/article/mg20227081.100-the-scien...

I thought I discovered this article via a comment thread on HN last month, but can't seem to find it, now.