Acem Meditation is a meditation technique developed in Norway since 1966 by the and is now taught in many countries. It is non-religious, and its effects are attributed to psychological and physiological mechanisms. It is process-oriented, correct meditation being defined in terms of practice rather than experiences or states of mind. In contrast to many other forms of meditation, it makes no use of concentration, but instead allows spontaneous thoughts to come and go during the practice. According to Acem, this increases relaxation effects and stimulates long-term processes of personal growth.