Patients are advised not to talk to other patients about their therapy"”—advice like this, formerly found an important issue in in-patient psychotherapy, has vanished almost completely Interactions between patients have become an important and valued part of treatment in psychotherapeutic hospitals and day centres. Exchange between patients about what happens in psychotherapy is considered a motivating factor. Patients attribute much of their individual treatment gain to talking to other patients. In order to make use of patient interactions and to promote a favourable therapeutic climate, group psychotherapy is regularly used as part of an integrated treatment plan in an in-patient setting.