“A characteristic feature of the marijuana ‘high’ is a distortion in the sense of time associated with deficits in short-term memory and learning. A marijuana smoker typically has a sense of enhance physical and emotional sensitivity, including a feeling of greater interpersonal closeness…

Delta-9-THC and Delta-8-THC are the only compounds in the marijuana plant that produce all the psychoactive effects of marijuana.

Because Delta-9-THC is much more abundant than Delta-8-THC, the psychoactivity of marijuana has been attributed largely to the effects of Delta-9-THC.” [Editor’s Note: When marijuana is metabolized in the liver, a new compound is formed. Called Delta-11-THC, it is more psychoactive than marijuana’s other cannabinoids.] Mar. 1999 - “Marijuana and Medicine: Assessing the Science Base”