[Addiction, impulsivity and temporal curves of desire].

This study addresses, from theories of associative learning, the impulsivity and craving in patients with a diagnosis of substance dependence in abstinence, habitual use and relapse. We present a new method for the assessment of desire based on discount curve self description, in which patients describe how they perceive the temporal evolution and intensity of their desire. At the same time, through a brief questionnaire about emotion and desire -developed by the authors-and the Plutchik Impulsivity Scale, we set out to check whether positive or negative emotions increase, decrease, or are uninvolved in changes of desire and impulsivity.