Acute effects of classic psychedelics on brain functional connectivity
Key Mechanisms
Increased functional connectivity between transmodal association networks and unimodal sensorimotor networks; specific subcortical-cortical coupling changes
Target Population
Healthy adult participants
Care Setting
Research/neuroimaging settings
Key Highlights
Psychedelics robustly increase connectivity between higher-order association networks (default mode, frontoparietal) and sensorimotor networks (visual, somatomotor).
Subcortical regions caudate and putamen show increased coupling with cortical networks under psychedelics.
No consistent evidence for widespread within-network disintegration; thalamic connectivity changes were not consistently observed.
Guideline-Based Recommendations
Diagnosis
No diagnostic recommendations; study focused on neuroimaging effects in healthy adults.
Management
No clinical management or treatment recommendations established from these findings.
Monitoring & Follow-up
Not applicable; findings are mechanistic and do not inform clinical monitoring.
Risks
Study does not address therapeutic efficacy or safety; limitations include variability in imaging protocols and small sample sizes for some compounds.
Patient & Prescribing Data
Healthy adults in controlled research settings
Findings reflect acute brain connectivity changes; no data on clinical outcomes or therapeutic use.
Clinical Best Practices
Interpret neuroimaging findings as mechanistic insights rather than clinical guidance.
Consider variability in study designs and small sample sizes when evaluating psychedelic effects.
Avoid extrapolating connectivity changes to therapeutic efficacy or treatment protocols.
