The neurologist Josep Dalmau is one of the world's most authoritative voices in neuro-oncology, the science that treats and studies tumors affecting the nervous system. The head of the Autoimmune Neuronal Diseases Pathogenesis group at IDIBAPS and researcher at the new CaixaResearch Institute received the Gregorio Marañón National Research Award for Medicine in 2025. Recently, the Conchita Rábago de Jiménez Díaz Foundation also honored him for his decisive contribution to the knowledge of autoimmune encephalitis, a group of brain diseases that for decades had no diagnosis or treatment.