Novas Relações entre as Interpretações Funcionais do Desamparo Aprendido e do Modelo Comportamental de Depressão

Abstract

The learned helplessness has been referred as being an animal model of depression. Its traditional hypothesis affirms that subjects submitted to uncontrollable aversive stimuli will develop learning difficulties, reducing their activity frequency. Such analysis has historically presented certain dissonance with the clinical model that affirmed some behaviors increased in frequency during the depressive episode. However, some researches show that subjects pre-exposed to uncontrollability learn the escape response, depending on the properties of the test contingency such as the contiguity of the consequence and the specific discriminative control. Those data impelled the formulation of a new functional hypothesis for the experimental procedure. In this article, it is suggested a possible dialogue between the new hypothesis and the behavioral model of depression.Abstract The learned helplessness has been referred as being an animal model of depression. Its traditional hypothesis affirms that subjects submitted to uncontrollable aversive stimuli will develop learning difficulties, reducing their activity frequency. Such analysis has historically presented certain dissonance with the clinical model that affirmed some behaviors increased in frequency during the depressive episode. However, some researches show that subjects pre-exposed to uncontrollability learn the escape response, depending on the properties of the test contingency such as the contiguity of the consequence and the specific discriminative control. Those data impelled the formulation of a new functional hypothesis for the experimental procedure. In this article, it is suggested a possible dialogue between the new hypothesis and the behavioral model of depression.