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The original was posted on /r/science by /u/mvea on 2025-03-23 18:24:33+00:00.

Original Title: By end of 6 week trial, both microdose LSD (20 micrograms) and placebo groups showed significant reductions in ADHD symptoms. Those who believed they took LSD reported greater symptom improvement, regardless of what they actually received. This suggests expectations may have played a large role.