The priming effect of affective valence stimuli in a task of magnitude estimation ofthe severity of antisocial behaviors

Several experimental studies have emphasized the influence of the affectivestate, generically understood, and emotional state, in specificity, in cognitive processing. In this sequence, we aimed to analyze the effect of pre-exposure to stimuli of different valences ­negative, positive and neutral­ in the cognitive operation of numerical magnitude estimation of antisocial behavior. 37 female university students took part in this study, all from the same class aged between 18 and 24 years, M = 19.53, SD = 1.06. They were randomly distributed in three experimental conditions related to the stimulus valence: negative, positive, and neutral. The participants viewed a series of 18 picturesof the International Affective Picture System of the respective experimental condition, registering into the Self Assessment Manikin the affective state that the images produced. After four minutes of interval, the participants estimated the severity of 15 antisocial behaviors. The results indicated that the negative valence pre- exposure had a significant effect of decreasing the estimation of the severity of antisocial behaviors, comparatively with the other groups. Finally, we discussed the results according to the hypothesis of emotional desensitization.