This paper takes very briefly on six decades of the history of psychology in the city of La Plata (Argentina), from the creation of the Pedagogic Department in the National University, in 1906, until the coup d'état of 1966, that put an end to the expansion of psychological studies that had started in 1958, after the creation of the psychology program. In that period, psychology would go through different phases, marked by oppositions such us “positivist naturalism"/ “anti-positivist humanism", “theoretical training" / “professional training", “scientific psychology" / “psychoanalytic psychology", etc. The goal of this work is to make an account of what happened at the time, giving as much importance to the individual actors as to the institutional and political factors that were present in the context. The methods are the traditional ones for history (mainly de gathering of oral, documentary and bibliographic sources. However, they have been interpreted from a critical perspective. [ABSTRACT FROM AUTHOR]