The objectification of the human being in its psychological feature according to the ideals of accuracy of the physical-mathematical science, as well as its identification with the biological fact, guides the project of psychological science like a positive discipline since the nineteeth century. Michel Foucault pointed this question that a paradox. The reduction of the human being into an object of reveals itself to be contrary to the considerations of Martin Heidegger over the issue of the Being. Thus, starting by these authors observations, it will be made a critics to the positivist model of scientificity used in the development of the modern psychological science and lastly to bring to this debate the ethics which is believed to be necessary.
Psychology; positivist postulate; Heidegger; Foucault