Over the years, few large-scale prospective studies have targeted the causes of personality disorders (PDs). But recently, a new body of research has begun to explore the potential influences of several factors, from genetics and parenting to peer influences, and even the randomness of life events.
Indeed, says Patricia Hoffman Judd, PhD, clinical professor of psychiatry at the University of California, San Diego, research into the origins of PDs is just beginning to take off. "I think for years people thought, 'It's just personality--you can't do anything about it,'" she explains. "There's also been moralism [that people with such disorders] are evil, that they are lazy," adds Judd, author of "A Developmental Model of Borderline Personality Disorder" (American Psychiatric Publishing, 2003).
But research is helping to turn such misconceptions around. Genetics researchers, for example, are closer to identifying some of the biological underpinnings that may influence PDs. Last year, for example, a team located--and described in Molecular Psychiatry (Vol, 8. No. 11)--a malfunctioning gene they believe may be a factor in obsessive-compulsive disorder. Other researchers are investigating genetic links to aggression, anxiety and fear--traits that could be influential in the later development of a personality disorder.
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