THC and paranoia Paranoia. It is that term you often heard associated with smoking weed all your life, and perhaps have even experienced it. A study in 2014 set out to find out if THC is the cause of paranoia, as well as if THC could help identify the mechanisms that contribute to paranoia. 121 participants ages 21 to 50, with paranoid ideation received a placebo, THC, or THC preceded by a cognitive awareness explanation, in which participants were educated about possible effects prior to administration (Antley et al., 2014). Paranoia in this study was defined as the individual experiencing an... Read More