Tuning in together: LSD enhances inter-brain synchrony and felt connectedness in romantic couples
Natasha Leigh Mason, Artur Czeszumski, Iva Totomanova, Filip Trbusek, Mauro Cavarra, Stephanie M. Ashton, Stefan W. Toennes, Eef Lien Theunissen, Johannes T. Reckweg, Patricia L. Lockwood, Marieke D. Dewitte, Katrin H. Preller, Kim P. C. Kuypers, Guillaume Dumas, Pablo Mallaroni, Johannes Gerardus Ramaekers
This study shows that LSD increases inter-brain synchrony and felt connectedness in romantic couples during rest and interaction, independent of drug concentration.
bioRxiv · Aug 21, 2026 · PreprintNeuroscience