Monika Moissidis, Leyla Abbasova, Martijn Selten, Rafael Alis, Clémence Bernard, Yaiza Domínguez-Canterla, Fazal Oozeer, Shenyue Qin, Audrey Kelly, Laura Mòdol, Navneet A Vasistha, Benjamin Jones, Pawan Dhami, Konstantin Khodosevich, Fursham Hamid, Paul Lavender, Nuria Flames, Oscar Marín DOI: 10.1016/j.cell.2025.06.029 Abstract Cortical neurons are specified during embryonic development but often acquire their mature properties at relatively late stages of postnatal development. This delay in terminal differentiation is particularly prominent for fast-spiking parvalbumin-expressing (PV+) interneurons,…