Scientists are about to find out how Silicon Valley's LSD habit really affects productivity
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But no existing study has looked into the science behind microdosing - a gap Feilding and a team of scientists and passionate fundraisers are hoping to fill.Feildman's new study will begin later this month, looking at 20 participants over the course of four "study days." Each day, the volunteers in the study will get one of four possible doses of LSD - 0, 10, 20, or 50 micrograms - and then do a series of tasks, answer questionnaires, and have their brains scanned. Each test is designed to see if and how the drugs affect people's creative and cognitive abilities. The researchers also hope to learn whether microdosing affects communication within and between brain networks the same way a full dose of psychedelics has been found to do.
"We want to look to see if we see those changes in cerebral circulation and connectivity and hopefully things like the 'aha!' moment that comes with creativity as well," Feilding says, adding that they hope to see the results as early as the end of the year.For the study, Feilding will be collaborating with London Imperial College psychopharmacologist David Nutt. New York University researchers Stephen Ross and Michael Bogenshutz are also involved in a series of related trials that are currently still in preliminary phases."It's a study I've wanted to do for 30 years," Feilding says. "I'm very interested in that level of [potential] cognitive enhancement which isn't a full-blown psychedelic state but is a lift in productivity and cognition and amusement or thinking further than one usually does."
What you need to know about microdosing
The existing research on psychedelics has been promising so far, but is still in its early stages. Most studies focus on "trip treatment" - essentially giving someone a "full" dose of psychedelics so that they trip or hallucinate. Patients in these studies have said the experience was overwhelmingly positive; many describe the trip as one of the most important experiences of their lives.
Microdosing today is "this fad almost in Silicon Valley," says Ross. "People are like, 'Yeah microdosing!' But in reality there is not a single controlled trial ever on this yet. So whether it's helpful or hurtful we don't know."
Another issue with today's microdosing trend is that it can be difficult to verify whether the LSD is actually causing the effects that people report and, more importantly, that the drugs people are taking are safe. That's one of the problems that the current and future studies aim to address, says Feilding."I do think society would be greatly served by us as a group getting to know more about psychedelics and hopefully working out a regulatory system so people can make use of them in the safest possible way," she says.
What happens in the brain during a psychedelic tripScientists can't say for sure what goes on in the brain after a full dose of psychedelics is taken, or precisely why it appears to produce such profound, life-altering experiences.
What they do know, David Nutt told Business Insider in January, is that in a psychedelic trip, "the normal hubs which control and regulate brain function become disrupted. There's much greater connectivity - parts of the brain that rarely talk to each other ... talk to each other."During a psychedelic trip, certain brain circuits are subdued while others get ramped up. The circuit that connects the parahippocampus and the retrosplenial cortex - a network thought to play a role in our sense of self, or ego - is one that that appears to be subdued during a trip. And deflating the ego appears to make people feel more connected to the people and environment around them.
"The normal sense of self is broken down and replaced by a sense of reconnection with themselves, others, and the natural world," Robin Carhart-Harris, who conducted the first study that took images of a healthy brain on a trip-inducing dose of LSD, said at a conference in 2013.
But what really happens with a microdose - or several - remains to be seen.
"There's a lot of hype about a 'revolution' in psychiatry, and I actually think it will radically change psychiatry," says Ross. "But we really have to do a bigger trial and see what the data shows us."
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