LSD-Perceptual-Choice-Study (LUCY)

Randomized, double-blind, crossover pharmacological challenge in healthy volunteers comparing 10 µg, 20 µg LSD and placebo across three 5-hour sessions with at least 7 days washout.

Participants perform multiple perceptual decision-making tasks with concurrent EEG to probe behavioural and neural indices of prior beliefs and evidence processing; continuous supervision until ~4.5 hours post-administration.