therapeutic action: sustained symptom reduction

Comparative oral monotherapy of psilocybin, lysergic acid diethylamide, 3,4-methylenedioxymethamphetamine, ayahuasca, and escitalopram for depressive symptoms: systematic review and Bayesian network meta-analysis

This study compared psychedelic drugs (psilocybin, LSD, MDMA, ayahuasca) with the antidepressant escitalopram for treating depression. Researchers analyzed 19 clinical trials and found that while psilocybin showed promise, its actual effectiveness was smaller than previously reported due to blinding issues in earlier studies. High-dose psilocybin performed better than escitalopram in some comparisons, but had a similar small effect size to current antidepressants.

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Psychological flexibility as a mechanism of change in psilocybin-assisted therapy for major depression: results from an exploratory placebo-controlled trial

This study examined how psilocybin mushroom therapy works for treating depression when combined with talk therapy. Participants received a placebo pill followed by psilocybin four weeks later, both times as part of psychological treatment. The research found that people who received psilocybin showed greater improvements in their ability to accept difficult thoughts and emotions and live according to their values, and these improvements were linked to feeling less depressed.

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How to account for hallucinations in the interpretation of the antidepressant effects of psychedelics: a translational framework

Psychedelic drugs like LSD and psilocybin show promise in treating depression with effects lasting months after single doses. However, scientists debate whether the hallucinations and mystical experiences these drugs produce are necessary for their healing effects. This review proposes a framework to test whether lower doses without hallucinations might still provide antidepressant benefits, similar to how anesthesia-administered ketamine works without the patient’s awareness.

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The association between diverse psychological protocols and the efficacy of psilocybin-assisted therapy for clinical depressive symptoms: a Bayesian meta-analysis

This research examined how different types of psychological support during psilocybin treatment affect depression outcomes. Researchers analyzed 10 clinical trials involving 515 patients with depression. They found that whether therapists used structured manuals or flexible approaches, or whether therapy was directive or non-directive, the depression improvement from psilocybin treatment was similar across all approaches.

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