Tim Leary's Neurcomics explains everything you need to know about the 8 Circuit model. http://www.flickr.com/photos/nerdcoreblog/8523754243/in/set-72157632906107486/ via http://io9.com/5988180/read-timothy-learys-brain+melting-comic-about-space-migration-and-the-future-of-human-consciousness

That takes me back.