Because, starting in the 2060s, with the ability to record the neural activity in the brains of patients with these different mental diseases, rather than defining the diseases on the basis of their symptoms, as we had at the beginning of the century, we started to define them on the basis of the actual pathology that we observed at the neural level.
Porque, a partir da década de 2060, com a capacidade de registar a atividade dos neurónios no cérebro dos doentes com diversas doenças mentais, em vez de definir as doenças com base nos seus sintomas, como tínhamos feito no início do século, começámos a defini-las com base na patologia real que observávamos a nível dos neurónios.