I am the first to say that I really don't know what they could be. Eating decarboxylated cannabis products is definitely anything but clear headed. I just know that this product is not decarboxylated in any way and is made with hemp which is very different to how I've prepared cannabis edibles before which are always  decarboxylated. The same friend claimed very similar effects eating the raw cannabis although he spoke most sparklingly about the extract our other friend makes. Having not experienced it myself I can't say much more than this from personal experience and only brought it up because the OP mentioned something similar.

My feeling is that there are other factors at play here, like a poster mentioned above, perhaps terpenes? Though I'm not sure if they get extracted in the method my friend uses to knock the trichromes off the plants.