The YouTube drug observatory

[image error]An innovative new study has analysed YouTube videos of people tripping on a hallucinogenic plant called salvia to understand the behavioural effects of the 'legal high' that is still relatively new to science.

Salvia divinorum is a strongly hallucinogenic plant that has been used by indigenous Mexican shamans for many centuries but has recently become popular as it is legal in many countries.

Pharmacologically, it is fascinating as it seems to have its major effect on kappa opioid receptors...