Yannick Bollmann, Laura Modol, Thomas Tressard, Artem Vorobyev, Robin Dard, Sophie Brustlein, Ruth Sims, Imane Bendifallah, Erwan Leprince, Vincent de Sars, Emiliano Ronzitti, Agnès Baude, Hillel Adesnik, Michel Aimé Picardo, Jean-Claude Platel, Valentina Emiliani, David Angulo-Garcia, Rosa Cossart DOI: 10.1038/s41593-023-01405-5 Abstract Spontaneous synchronous activity is a hallmark of developing brain circuits and promotes their formation. Ex vivo, synchronous activity was shown to be orchestrated by a sparse population of highly connected GABAergic ‘hub’…