Depression information
The "real world" is a construct, and some peculiarities of scientific thought become more intelligible when this fact is recognized ... Einstein himself in 1926 told Heisenberg it was nonsense to found a theory on observable facts alone, saying "In reality the very opposite happens. It is theory which decides what we can observe." - D. O. Hebb
Here are a few handouts that I've put together over the years to provide background information about depression. The development/maintenance diagram is probably the handout here that I use most - both to explain issues about depression and also for many other psychological disorders as well.