Some additional links and thoughts  There's a very straightforward overview of clicker training for dogs at http://www.youtube.com/watch?v=IC367wKGi4M there are as many related videos as you could wish for.

Going back to memory for a moment, this article is short but links in with points we have discussed; Working Memory: They Found Your Brain's Spam Filter

And back even further to motivation; I mentioned in passing the similarity between Hebb's curve and the work of Yerkes and Dodson in 1908--you can read that at http://psychclassics.yorku.ca/Yerkes/Law/

See you Wednesday!  18:57