Conversely, a “Cannabis Induced Psychosis” is a very different beast. This is a short-term psychotic episode caused due to a high dose of cannabis. Eat several high-dosed brownies and you’ll know what I’m talking about. You can experience vivid hallucinations, feelings like you might be dying or in some cases lack of some control over muscle functions (slight spasms in the leg, etc). Cannabis users call this “greening out” and psychonauts refer to this as “taking a heroic dose”.