Raw, un-oxidised THC, acts on the brain receptors, in a similar way to amphetamines and prolonged use of amphetamines does trigger psychosis, especially in conjunction with long periods of sleep deprivation. An effect of raw THC is it will deprive people of proper sleep because it over rev’s the brain and chemicals usually produced by the brain during sleep periods which induce dream state are not produced properly and this leads to the detrimental effects as the cumulative consequences of over stimulating neurochemicals takes hold and the brain essentially snaps and misfires more and more, so a psychotic episode, even if they do get their heads down for a few hours through fatigue, if they use a lot of unripe cannabis with raw THC, they will be unlikely to achieve REM states, and that in regards to potential psychosis, is what matters, waking up again after a brief sleep period without REM may restore some physical energy, but then frequent users of unripe cannabis will drink that coffee etc, have another wake and bake spliff etc, and so the REM deprived person goes on and on day after day until that snap occurs, that, is what can seriously cause a psychotic episode especially when stress factors like troubled relationships, or familial difficulties, money worries, employemnt difficulties, prolonged personality clash dynamics etc and for example, are present and serve as triggers.
And drug induced sleep deprivation psychoses are what mental health agencies have been dealing with or mental conditions very similar to that, with many of those it does also go into other substances they are using but raw THC itself can do it alone, the compounded and detrimental effects when mixing other drugs with cannabis is another issue which I will articulate at a later stage.
I've witnessed it .