Although a philosopher and not a scientist, Roberto Ardigò, the father of Italian positivism, actively contributed to the birth of psychology as an autonomous science. Since his arrival at the University of Padua in 1881, he proposed integrating the traditional teaching of theoretical philosophy with the experimental investigation of mental facts, and therefore argued for the establishment of a psychological laboratory. After some attempts to introduce his followers, such as Giovanni Marchesini, to psychological studies, Ardigò’s project started to take shape when in 1898 he sent his pupil Gino Melati to be trained at the Leipzig laboratory under the supervision of Wilhelm Wundt. Melati fruitfully spent around two years abroad investigating...