Schizoid personality disorder according to DSM-IV is characterized by indifference to social relations and narrowed the range of emotional experience and expression. This disorder is diagnosed on the basis of a number of signs, four of which are sufficient to confirm the type of violation: 1. Lack of desire, the desire to establish any close interpersonal relationships. A person with this disorder does not get the pleasure and joy of the interactions not only with a relatively distant people, but also with family members. It is as if not a family member.