The importance of Franz Brentano's act-psychology / A importância da act-psychology de Franz Brentano

This article attempts to redeem Franz Brentano's paternity of his Intentionality Theory, which sustains his act-psychology, which postulates, among other thesis, the indissociabitity between idea and action for explaining the specificity of human behavior. For that, he is considered one of the creators of modern psychology, as emancipated from philosophy. This assumption is subjacent to Psychoanalysis, Gestalt-Psychology and Cognitive-Phenomelogical Psychology.