Plastic piano, plastic keyboard, same thing. I think the MRI was doing the jamming, not the people's heads.

Neat site. Did you celebrate pi day the other day? I got my math teacher sister-in-law a "pi dish" with the pi equation around the rim http://www.whatonearthcatalog.com/cg...il&item=VC4603 for Christmas; she said she was going to take it in on pi day.