A major new study into the impact of cannabis on the brain has attracted controversy and brought accusations of bias from within the industry before it even begins.
Headed by Marta Di Forti, senior clinical fellow at King’s Institute of Psychiatry, Psychology and Neuroscience, and funded by the UK Medical Research Council, Cannabis & Me will use DNA genetic and epigenetics testing, psychological and cognitive analysis, and virtual reality to explore the link between a user’s biological make-up and the effect cannabis has on an estimated 6,000 participants. But some experts have raised concerns that the results could be biased towards suggesting the potentially harmful effects of cannabis.