Fig. 2

Acute effect of Δ9-THC on psychopathological measures. THC (−)-trans-Δ⁹-tetrahydrocannabinol, PLB placebo, PANSS Positive and Negative Syndrome Scale, STAI State-Trait Anxiety Inventory, AIS Analog Intoxication Scale, VAMS Visual Analog Mood Scale, mins minutes, h hours, P 2-tailed; error bars show standard deviations