The main aim of this study was to examine the effectiveness of AA according to the NADA protocol versus PMR in patients with AD or MDD. We hypothesized, that both treatments show significant effects in alleviating the examined items (tension, anxiety, anger/aggression and state ofr mood) and that there is no significant difference between these two treatments. In order to increase the patients´ treatment acceptance and compliance, this study was set up in an open design in which each patient was freely able to choose between both treatments.