Dave Snowden is generally pretty up on things, and this presentation summary illustrates nicely and simply the major elements of his thinking. "The brain is revealed as a pattern processor, in which original fragments last longer as being relevant than the context they are put in by our brain." The post contains links to more of Snowden's work. It would be nice to have a link to the presentation itself, though. Ignatia also summarizes presentations from Jay Cross, Steve Mahaley, Tony Karrer.