[Neurodevelopment: a transnosographic dimension].

The neurodevelopmental dimension represents a major challenge for the future of precision psychiatry. It provides a transdiagnostic framework, that allows for the redefinition of psychiatric disorders beyond traditional diagnostic categories, such as autism spectrum disorders, attention-deficit/hyperactivity disorder, schizophrenia, and bipolar disorder. This model is based on the identification of deviations in brain developmental trajectories during critical periods of vulnerability. Using multimodal approaches that integrate clinical, biological, neuroimaging, and neurophysiological data, this framework aims to define an individualized neurodevelopmental burden, opening up new prospects for stratification and the development of personalized treatments tailored to each developmental profile.