Author: Stephen Johnson / Source: Big Think
A new paper suggests past research on MDMA, the main component of ecstasy pills, often overestimated the dangers of the drug because the studies examined heavy users, not average ones.
The idea for the study, published in the Journal of Psychopharmacology, came when lead author Balázs Szigeti of the University of Edinburgh read about a neuroimaging study that claimed ecstasy use results in lower levels of serotonin transporter, a protein that’s been linked to anxiety and depression.
“I found it weird that they called users who take 2 pills twice a month ‘low to moderate users,’ I suspected that it is much more than what the average user takes,” Szigeti told PsyPost.
“The difficulty was to get data about ecstasy use patterns to test my hypothesis. I realized that the Global Drug Survey (GDS) is likely to have the data I need, so I emailed them arguing for a collaboration. They were interested and then we quickly realized that there is a point to be made here.”
The GDS is the largest drug survey in the world. It collects anonymous data each year from more than 100,000 drug users worldwide by asking questions like drug use frequency, how people lost their ‘drug virginity’, and whether it takes longer to get cocaine or a pizza delivered in your city, as VICE wrote.
Szigeti and his colleagues examined data from 11,168 GDS respondents who said they’d used ecstasy at least once in the previous year. The average person in this group took 12.2 ecstasy pills per year.
Compare that to the participants in 10 prior neuroimaging studies on MDMA who, on average, took 87.3 pills per year. That’s 720 percent more than GDS respondents.
“Our analysis suggests that ecstasy induced serotonergic alterations are likely to…
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