A new Nature study by Monash University neuroscientist Devon Stoliker challenges the long-held belief that psychedelics like psilocybin induce random chaos in the brain. Instead, the research reveals a more structured reorganization: under psilocybin, sensory regions lose dominance while associative regions—responsible for imagination, beliefs, and self-awareness—gain influence. This shift may explain why users report profound, meaningful experiences rather than mere confusion.
In the Psi Connect experiment, 62 psychedelic-naive participants underwent MRI and EEG scans while meditating, listening to music, or watching clouds—without cognitive tasks to avoid “grounding” them. Half rated the experience among their most meaningful; 24 placed it in their top five. The study found that while internal network connections weakened, cross-network connections strengthened, reducing the brain’s modularity. Notably, the usual difference between eyes-closed and eyes-open brain activity nearly vanished under psilocybin, suggesting a unified, immersive state rather than disarray.
Source: Ars Technica · Summarized by HeadlinesBriefing