Surprising new research links LSD-induced brain entropy to seizure protection

LSD exposure may reduce the severity of acute seizures in a mouse model and appears to protect against lethal status epilepticus, according to two related studies. In the seizure study, adolescent male and female C57BL/6J mice received LSD or saline and were then given kainic acid to trigger seizures. Male mice given a higher LSD dose showed no status epilepticus and no deaths, while the lower dose reduced severe outcomes. In both sexes, LSD shifted seizure behavior toward less extreme patterns and increased response variability, suggesting individual differences in effects. A companion neurophysiology study found LSD changed brain electrical dynamics: it broadly reduced neural oscillation power (across multiple frequency bands) and increased variability or instability in signals in hippocampus and cortex. The authors connect this to an “entropic brain” idea, proposing that desynchronization and increased network noise could hinder hypersynchronized seizure activity from organizing and generalizing. The researchers stress the findings are preliminary, limited to mice, and not a direct recommendation to use LSD for epilepsy.