The Magic of Mushrooms

April 29, 2019

Depression rates are shockingly high. The condition is estimated to affect 10-15 percent of the global adult population and has been ranked as the fourth highest contributor to the global disease burden by the World HealthOrganization.

To make matters worse, approximately 30 percent of people who suffer from major depression are classified as “treatment-resistant,” meaning that they respond poorly to the different types of antidepressant medications currently available.

Put these facts together and you have a public health crisis. This has prompted many scientists to look for out of the box treatments for depression. One treatment that has shown promise in recent studies is psilocybin, the active chemical compound in hallucinogenic mushrooms. A new study published in the journal Acta Psychiatrica Scandinavica adds more credibility to the claim.

In the study, researchers in the United Kingdom recruited 20 patients suffering from treatment-resistant depression. Patients were first asked to complete a depression screener and a personality test measuring the Big-5 personality traits (neuroticism, extraversion, openness to experience, agreeableness, and conscientiousness). Then, over the following weeks, participants were given two doses of psilocybin (10 mg and 25 mg doses, respectively). Finally, after a few more weeks, patients filled out the same depression screener and personality test they did at baseline.

The goal was to see if and how the psilocybin treatment reduced depressive symptoms and altered personality. Indeed, they found promising improvements on both counts. Depression, as measured by the 16-item Quick Inventory of Depressive Symptoms, showed directional reductions from the baseline measurement to the follow-up.

Moreover, psilocybin treatment appeared to have a marked effect on personality. Neuroticism significantly decreased from baseline to follow-up, while extraversion, conscientiousness, and openness significantly increased.

What’s especially intriguing about these results is that the antidepressant effects produced by psilocybin appear to function in an altogether different manner than mainstream antidepressants, such as SSRIs and MAOIs. Whereas mainstream treatments have been shown to improve the personality dimensions of neuroticism and conscientiousness, the increases in extraversion and openness appear to be exclusive to psilocybin treatment.

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