People with schizoid personality disorder avoid relationships and do not show much emotion. They genuinely prefer to be alone and do not secretly wish for popularity. They tend to seek jobs that require little social contact. Their social skills are often weak and they do not show a need for attention or acceptance. They are perceived as humorless and distant and often are termed "loners."
Many believe that schizotypal personality disorder represents mild schizophrenia. The disorder is characterized by odd forms of thinking and perceiving, and individuals with this disorder often seek isolation from others. They sometimes believe to have extra sensory ability or that unrelated events relate to them in some important way. They generally engage in eccentric behavior and have difficulty concentrating for long periods of time. Their speech is often over elaborate and difficult to follow.
Obsessive-Compulsive personality disorder is similar to obsessive-compulsive anxiety disorder. People with this disorder are overly focused on orderliness and perfection. Their need to do everything "right" often interferes with their productivity. They tend to get caught up in the details and miss the bigger picture. They set unreasonably high standards for themselves and others, and tend to be very critical of others when they do not live up to these high standards. They avoid working in teams, believing others to be too careless or incompetent. They avoid making decisions because they fear making mistakes and are rarely generous with their time or money. They often have difficulty expressing emotion.