The Diagnostic and Statistical Manual of Mental Disorders fourth edition, a widely used manual for diagnosing mental disorders, defines schizoid personality disorder as:
A. A pervasive pattern of detachment from social relationships and a restricted range of expression of emotions in interpersonal settings, beginning by early adulthood (age eighteen or older) and present in a variety of contexts, as indicated by four (or more) of the following:
- Neither desires nor enjoys close relationships, including being part of a family
- Almost always chooses solitary activities
- Has little, if any, interest in having sexual experiences with another person
- Takes pleasure in few, if any, activities
- Lacks close friends or confidants other than first-degree relatives
- Appears indifferent to the praise or criticism of others
- Shows emotional coldness, detachment, or flattened affect
B. Does not occur exclusively during the course of schizophrenia, a mood disorder with psychotic features, another psychotic disorder, or a pervasive developmental disorder and is not due to the direct physiological effects of a general medical condition.
It is a requirement of DSM-IV that a diagnosis of any specific personality disorder also satisfies a set of general personality disorder criteria.
If a person has a Schizoid Personality Disorder there is help available. James Masterson, MD pioneered a successful approach to working with persons with Schizoid Personality Disorders. Joseph Farley was personally trained by Dr. Masterson and utilizes this approach when necessary in his private practice