Can Psychopathy be Prevented? Clinical, Neuroimaging and Genetic Data

The goal of this clinical trial was to learn about the effect of maltreatment on psychological and brain characteristics in a group of children. The main question it aims to answer are: which are the clinical characteristics of maltreated children before and after a psychological intervention? what changes in brain emotional processing after a psychological intervention? and what is the effect of serotonin transporter variants after a psychological therapy? Participants were assessed before and after intervention with: * clinical measures of anxiety, depression post-traumatic stress and callous-unemotional traits * functional neuroimaging techniques to measure brain activity. * A sample of buccal epithelial cells to obtain information on serotonin transporter. Researchers will compare maltreated children with a group on non-maltreated children to see if there are differences on psychological characteristics and on brain activity before treatment.