This study is conceptualized as a randomized controlled trial with two groups: EMDR + TAU vs. TAU + sham intervention (TAU: Treatment As Usual; the sham intervention is a cognitive training). The groups are compared pre-treatment, post-treatment, and there are two follow-up points of assessment: one month after post-treatment and three months after post-treatment. There will be a total sample of 60 clinical SUD male participants, which will be investigated during their in-patient stay at a therapeutic community center (after an initial phase of acclimatization of six weeks). One half of the sample: 30 participants will receive EMDR + TAU (experimental group; EG), the other half receives TAU + sham intervention (control group; CG).