New technology is helping Cornell scientists map how psychedelics reshape brain signaling, aiming to solve why their effects can outlast the drugs themselves

Psychedelics can trigger changes in mood, perception, and mental health that last far longer than the compounds remain in the body, and Cornell scientists are using new technology to investigate how that happens in the brain. The central mystery is why brief chemical activity can lead to durable shifts in neural signaling, behavior, and possibly therapeutic benefit. Advanced tools for measuring brain activity and cellular communication are being used to trace how psychedelic compounds affect receptors, circuits, and downstream plasticity over time. That work focuses on the biological mechanisms that could explain persistent effects, including altered connectivity and longer-term changes in how neurons respond after the acute experience ends. Better mechanistic insight could sharpen psychedelic medicine by helping researchers predict which compounds produce lasting benefit, reduce unwanted effects, and design treatments that separate therapeutic change from intense intoxication.