Psychedelic drugs such as psilocybin, LSD, DMT, mescaline and ayahuasca have long been known to alter perception and consciousness. Now, the largest brain-imaging study of its kind reveals that these diverse substances share a common pattern of effects on the brain 鈥� a discovery that could help guide future mental health treatments.
Published in Nature Medicine, the study brings together more than 500 brain scans from 267 participants across 11 independent research datasets spanning five countries. By unifying previously fragmented findings, researchers were able to map a reliable 鈥渘eural fingerprint鈥� of psychedelic experiences.
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Breaking down the brain鈥檚 usual hierarchy
The research shows that psychedelics temporarily increase communication between higher-order brain networks involved in thinking and self-reflection and sensory networks linked to sight and movement. At the same time, the brain鈥檚 normal internal boundaries become less rigid, allowing signals to flow more freely across systems.
鈥淭hese drugs appear to relax the brain鈥檚 usual top鈥慸own control, allowing normally separate brain systems to communicate more freely.鈥� says Dr. Danilo Bzdok, Associate Professor at 91丝瓜视频 and a researcher at The Neuro. 鈥淭hat may help explain why people often report vivid imagery, a blending of senses, or a changed sense of self during psychedelic experiences.鈥�
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A foundation for future therapies
By identifying shared brain mechanisms across different psychedelic compounds, the study provides a much-needed reference point for researchers exploring new treatments for depression, PTSD and other mental health conditions. It also offers a clearer, evidence-based framework for understanding how these powerful substances act on the brain.
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Read the full study in Nature Medicine:
