They Think, Therefore I Am
![](https://media.wnyc.org/i/800/0/c/85/photologue/photos/tt/brain-scan-flickr-reigh-leblanc-cc.jpg)
PET scan of a healthy brain
( Flickr user reighleblanc (cc: by-nc-sa) )
( Flickr user reighleblanc (cc: by-nc-sa) )