Effects of Psilocybin on neurogenesis, a talk by Zeno Sanchez-Ramos.
A little dry but good info. One of the more interesting things found in this study was that Psilocybin was growing new brain cells, but not from one dose. Not until they gave 3 doses--One dose a week for 3 weeks did they find this as a result. This may point to better clusterbusting relief if taken on this schedule (or maybe not...) Even if it did not up the effectiveness of the mushrooms, I would bet money that it WOULD help fight off depression.
I found this extra interesting because I take my mushrooms once a week, for three weeks, then take a week or two off.
http://www.youtube.com/watch?v=QRNSEG1DY2s&feature=youtube_gdata_player
-Ricardo