Psilocybin reshapes brain connectivity in chronic pain and links reduced network destabilization to stronger pain relief in a neuroimaging study

Psilocybin is being investigated as a treatment for chronic pain because it appears to rapidly alter brain network dynamics tied to persistent pain processing. Neuroimaging findings indicate that people with chronic pain show less destabilization of the brain's default mode network after psilocybin than pain-free participants, and that this reduced flexibility is associated with greater pain severity and weaker therapeutic response. The results connect subjective pain relief to measurable changes in functional connectivity and suggest that chronic pain may constrain the brain's ability to enter the more plastic state often seen after psychedelics. That pattern could help explain why response varies across patients and may point toward biomarkers for selecting participants, tailoring treatment, or combining psilocybin with other interventions that support adaptive network reorganization.